Java Image Pixel Value

Coderwall Ruby Python JavaScript Front-End Tools iOS. javascript canvas. There are also effects, such as rendering a scene one pixel at a time (for example, using a ray tracer) or postprocessing an image with JavaScript (blurring or distorting it), that can be realistically handled only by a pixel-based approach. Thus, any alpha value between 0. Java: Read Image Pixel By Pixel And Convert To Grayscale Color Using Simple Grayscaling method. 0 (nothing). The basic idea is to get the pixel value for each cordinates and then keep the desired resultant color pixel value to be same and set the other two as zero. The img element shouldn't be used to insert images without a meaning to the document. From this set, I'm trying to do the following operations: 1- Take the pixel value at x=0 and y=0 of every image of the set. It shouldn't be a surprise at this point what this function is called. If pixel value is greater than a threshold value, it is assigned one value (may be white), else it is assigned another value (may be black). This code is the only one I have found that resizes the index page of my website (with lots of images) to fit the screen of my ipad without cutting off 20px on the side. First of all, the byte type in Java is an 8-bit signed two's complement integer. i thought of looping trough the coordinates(x,y) of the image and get the color value of each of the pixel at each coordiante point. The Uint8ClampedArray contains height  × width  × 4 bytes of data, with index values ranging from 0 to (height × width ×4)-1. For example, the image below contains 4 components: there are 2 red components, one blue component, and the white, background component. java class to specify the folder where the pictures are stored. The intrinsic width and height of the image in CSS pixels are reflected through the properties HTMLImageElement. Pixels are the smallest unit of an image which consists of four components Alpha (transparency measure), Red, Green, Blue and in short (ARGB). The tag is likewise simple -- it NAMES a parameter the JAVA applet needs to run, and provides a VALUE for that parameter. Table Size We can set the size of the table based of pixels or percentage. Here is how we can create an ImageData object. T he border setting defines the width (in pixels) of the border around the image. This includes any pixel data that is being cached for rendering to the screen as well as any system resources that are being used to store data or pixels for the image if they can be recreated. For example, a pixel with a value of 0XFF0000FF, has an opaque blue color. In this program, I introduced you to a new Java program that can be used to edit the pixels in an image on a pixel-by-pixel basis. In fact, since OpenCV already has an implementation of the Not function and performance-wise it is better than the generic version of the equivalent Convert function call. Lets take the above kernel and do some math: for each pixel, center the kernel over the pixel, multiply the kernel values times the corresponding pixel values, and add the result - this final value is the new value of the current pixel. For instance, if you want to transpose a pixel from one picture to another, part of the process will be using the x,y coordinates of the pixel and its color values. File object or java. Create a PixelGrabber object to grab the (x, y, w, h) rectangular section of pixels from the specified image. imshow(dna // 2) pylab. base the colors of a layout or graphic design on a photo or other type of artwork that you upload. Millionaire Hot Seat Tickets, Millionaire hot seat questions today! Tickets are a you can buy more if. In the first example, we display an image on the panel. 2- Compute the lowest valued pixel. Click the Color Picker tool present in the Tools. If a string is provided, however, any valid CSS measurement may be used for the width (such as 100px, 50%, or auto). java) and run the application (via java Blender1). The weight value specifies the fractional percentage of the first image's pixel values to keep—from 1. How to: Use a Color Matrix to Set Alpha Values in Images. Most of the time, we view these pixels as miniature rectangles sandwiched together on a computer screen. What we have at the end of this code is three arrays, each containing the count of each possible value of one color in the image. Its range is [-128, 127]. But i am facing the problems, as outlined below. Java+You, Download Today!. then i also need to set the color value to the pixel with the changed rgb values. I just used a bmp image for that. And go through the whole image that way. Alternatively, compare two bitmaps as defined in basic bitmap storage. (for example an screenshot of your desktop). According to Wikipedia, morphological operations rely only on the relative ordering of pixel values, not on their numerical values, and therefore are especially suited to the processing of binary images. Prerequisite. We also need a bit more storage space because the totals will go above the maximum value of a pixel - we'll. LIST OF ACTIVITIES. CamanJS is (ca)nvas (man)ipulation in Javascript. Histograms help you determine whether an image has enough detail to make a good correction. Image-3 Loops. Some operational details follow. I suggest you comment out the eq. It can store pixel values in a user-specified array or create a suitable array itself. The useful values for this image are the width and height, 73 and 70 pixels, and the image size, 73•70 = 5110 pixels. Previously, we had things like this pixel. and in using only grayscale images. Use scaling to set the foreground pixel value to 2, and the background pixel value. The array will be represented as shown below: // RED GREEN BLUE WHITE [ 255, 0, 0, 255, 0, 255, 0, 255, 0, 0, 255, 255, 255, 255, 255, 255] Changing the pixel data. Needs provide to be able to have a rest, whilst giving you feeling of purpose. The Java Advanced Imaging API extends the Java 2 platform by allowing sophisticated, high-performance image processing to be incorporated into Java applets and applications. School of Nursing - Sandra Annan | JMU | CHBS document. It’s built into every Pixel 2, and in the coming months, we’ll turn it on through a software update to enable more applications to use Pixel 2’s camera for taking HDR+ quality pictures. Use the online image color picker right to select a color and get the html Color Code of this pixel. JAVA: GETTING PIXEL DATA FROM A GIF FILE: BACKGROUND: The Image object in Java is very nice. image « b » is only dependant of the pixel value P(m 0', n 0') of the input image « a ». Using Processing. But, there is a Spirit that gives Life, zoe, the Indestructible Life and Image of God to restore our soul. The goal here is to convert/transform Image into Base64 String and convert/transform Base64 String back to Image without compromising a Image data. length; Here, your method assumes that every image is a rectangle of some kind. Image-3 Loops. Java DIP - GrayScale Conversion - In order to convert a color image to Grayscale image, you need to read pixels or data of the image using File and ImageIO objects, and store the image in Buffer. Unbelievably Unbeatable Stock Images. Find the color of a pixel in an image Problem. Multidimensional Arrays and Images • One of the best examples of multidimensional arrays is a Java image, which is logically a two-dimensional array of pixels. For this example, we'll write code to change the flowers. Making the most of your LinkedIn profile. can you pls tell how to convert pixel values to image How to read pixel RGB values from images;. Each int value will be populated with one alpha byte and three color bytes. The example is a 4 pixel by 4 pixel image; Finally, we have the maximum color value. a) function setBlack(pixel) - This function has a parameter pixel that represents a single pixel, and returns a pixel that has been changed to be the color black. Then, lines 32 through 38 output the value of each one of the pixels at the four corners of the image. That logo is actually an array of pixels as shown in the expanded diagram at the bottom. The first pair is the alpha channel. I don't want to change every pixel to the same color, I plan on creating a simple algorithm to change the pixels RGB values based upon it's current RGB value. And again: 1- Take the pixel value at x=0 and y=1 of every image of the set. fill: Resize the image to the specified dimensions, cropping the image if needed. Sikuli Project. Button label. Get the pixel data of an image in HTML. I tried this: p. If the source value for a pixel is 63, without any eq. The X and Y-axes of the image’s signal are the two dimensions of the screen, while the amplitude of the signal, the Z-axis, is the value of the pixel at (X, Y). open method. Pixels in an image are not stored in a byte - unless the image is monochrome, i. Typical examples of this misuse include images used as spacehoders or. In Java, the BufferedImage class is used to handle images. I would test that first. Draw image on a canvas (testing purpose) This article assumes that you know how to draw an image on a canvas or you have already something drawn using paths and therefore you want to retrieve the color from a pixel etc. Get Pixel Information in Image Viewer App Determine Individual Pixel Values in Image Viewer. i thought of looping trough the coordinates(x,y) of the image and get the color value of each of the pixel at each coordiante point. All Forums. I was recently working on a project which featured tables that were keyboard navigable so obviously using cell outlining via traditional tabIndex=0. If the current pixel is green, I am at the end of a letter. setRed(200); With one line of code, change the red value of one pixel. We achieve this by multiplying the pixel’s red color channel value with a positive number and adding that to the car-score. Parameters. Definition and Usage. Some operational details follow. The first way is the recommended one. This resizing method is presented by Avidan, S and Shamir, A (Seam Carving for Content-Aware Image Resizing). The best method for that would be to create rotated images in a graphics program, not in your Java program. The useful values for this image are the width and height, 73 and 70 pixels, and the image size, 73•70 = 5110 pixels. a) function setBlack(pixel) - This function has a parameter pixel that represents a single pixel, and returns a pixel that has been changed to be the color black. Use the online image color picker right to select a color and get the html Color Code of this pixel. There are documentation examples and product demos showing how to do this, and I've shown this function in action several times in this blog. intBitsToFloat(). • Consider, for example, the logo for the Java Task Force at the top right. And again: 1- Take the pixel value at x=0 and y=1 of every image of the set. The img element represents an image, which is an external resource that can embedded in the body of a document. Then , the location of the parent pixel will be obtained with the location of the leaf children pixels of that parent. This is important if you wish to offer different image size to higher resolution screens. Author's instructions. bind({ url, points, orientation, zoom })Promise. What it does is display, in a window, the values of the pixels in a small square neighborhood (outlined in red) as the mouse is dragged over the image. PixelGrabber; public class CompareImage. Write a java program to read and write images. This can be used to generate HTML files that contain the height and width attributes for an image that is on the disk. I tried that way. In Java, the BufferedImage class is used to handle images. With PixelValue [image, marker], nonzero pixels of the image marker are used as the list of positions. Java DIP - GrayScale Conversion - In order to convert a color image to Grayscale image, you need to read pixels or data of the image using File and ImageIO objects, and store the image in Buffer. The BufferedImage contains a 1D array of length Width x Height X Channels (image dimensions). An image histogram can help us to quickly identify processing operations that are appropriate for a particular image. Then set the red, green, and blue values of the pixel to be that average number. Now I want to get the brightness value for each stack corresponding to its x and y coordinates of pixel using imageJ. Then, for every pixel of the image, take the sum of products. but this is a minor detail. I'm trying to find the curvature of the features in an image and I was advised to calculate the gradient vector of pixels. Auto-scaling of pixel dimensions and coordinates. Write the simplest version of the format of the markup tag for an inline image. By accessing this array you can manipulate the pixels. Returning to CT images, where each sample value is between 0 and 4095, bits stored is 12 (2 power 12 is 4096). Table Size We can set the size of the table based of pixels or percentage. I was recently working on a project which featured tables that were keyboard navigable so obviously using cell outlining via traditional tabIndex=0. The domain chacha. In order to render an image to the screen, a printer, or another image, pixel values must be converted to color and alpha components. This tool can be used to examine how a filter changes the pixel data (also during with Preview). A digital image is nothing more than data—numbers indicating variations of red, green, and blue at a particular location on a grid of pixels. I want to know if there is a way to get pixel coordinates from an imagefile with a mouseclick in labview, this is to use the coordinates in order to calibrate the image without using the vision assistent. For example, if the pixel values are concentrated in the far-left portion of the histogram (this would correspond to a very dark image), we can improve the image by shifting the values toward the center of the available range of. Every image is made up of pixels and when these values are extracted using python, four values are obtained for each pixel (R,G,B,A). a single dot in your image. ImageJ supports image stacks, a series of images that share a single window, and it is multithreaded, so time-consuming operations can be performed in parallel on multi-CPU hardware. The arrow keys nudge the red square if the Pixel Values window is in the foreground. And a pixel with a value of 0X99FF0000 is a translucent red color. 0's AWT was awkward and non-object-oriented (using many event. Está procurando seguro de carro, vida, residência, viagem ou para sua empresa? Cotamos em mais de 13 seguradoras! Acesse o site da Minuto e confira. The Height and Width properties on the Image type is useful as well. These two values should be set to the dimensions of the largest image. But JavaScript took on a life of its own as one of the three pillars of web development—the other two being HTML and CSS. Put your face right up to the screen. Image services can have a default function that will be applied automatically. Java Project Tutorial Image Processing with Pixels - Processing Tutorial - Duration:. There are two ways of implementing processing. Image Position by style. It is actually the value of those pixels that make up an image. Photographic images have a number of characteristics that we often don't consider. In this program, I introduced you to a new Java program that can be used to edit the pixels in an image on a pixel-by-pixel basis. So either you need JAI plugin or other third party libraries to convert these files into buffered images. Go to your Pixels tab in Events Manager. These can differ from the width and height values in the returned list: those values are the pixel dimensions to used display the image. School of Nursing - Sandra Annan | JMU | CHBS document. then i also need to set the color value to the pixel with the changed rgb values. CNET is the world's leader in tech product reviews, news, prices, videos, forums, how-tos and more. Some browsers add shadowing to text boxes on Web forms. , the upper left pixel (labeled 1,1) is encoded first followed by the remainder of row 1, followed by the first pixel of row 2 (labeled 2,1) then the remainder of row 2 and so on. - Tamem-Maaz/Color-Image-Steganography-Based-on-Pixel-Value-And-Key-LSB. When you create an image map it's important to remember that if you change the size of the image you will also have to change the area. i need to convert color image to grey scale image. In this set we will be converting a colored image to an image with either red effect, green effect or blue effect. length; Here, your method assumes that every image is a rectangle of some kind. Use the SHAPE attribute to define the shape; one of "rect", "circle" or "poly". maxval - maximum value to use with the THRESH_BINARY and THRESH_BINARY_INV thresholding types. Image Position by style. Just like VBOs and VAOs, textures are objects that need to be generated first by calling a function. OpenCV examples for Assessing the pixel values of an image. Let me know if you are able to help me. Further, for setting the pixels setRGB() function may be used. The img element represents an image, which is an external resource that can embedded in the body of a document. Then, lines 32 through 38 output the value of each one of the pixels at the four corners of the image. Consider a gray-scale image, made up of pixels which have some value between white (0) and black (255). The pixels are accumulated in the original ColorModel if the same ColorModel is used for every call to setPixels, otherwise the pixels are accumulated in the default RGB ColorModel. 2 MB (this is because there are 1024 bytes in a kilobyte and 1024 kilobytes in a MB). I was wondering how this can be accomplished in java. Image size 1618560 Maximum RGB value in this image 255 Minimum RGB value in this image 0 These values are important to verify since the eight bit color intensity is, can not be outside of the 0 to 255 range. Digital Image Processing (CS/ECE 545) oods, Digital Image Processing (2002) Old pixel value New pixel value Constant Power. The pixelFilter property is used in this sample to add a custom continuous color ramp to the pixels. intBitsToFloat(). You can use the program to open image files, scribble on them with your mouse or other pointer device, and save them. I am writing a code to get pixels value of the entire image and store it into a array. Bind an image to the croppie. How to calculate intensity value of an image ? Asked by julia which is the very lower right pixel, so the value is just the gray level of that pixel times the. In image analysis this process is generally used to produce an output image where the pixel values are linear combinations of certain input values. The Elements of Style Fourth Edition William Strunk Jr E B White Test Editor Roger Angell Books Reviews. Image Arithmetic¶. getRGB(j, i)); Getting RGB Values. object) for details of this class. The first bit is at the rightmost side and is numbered or indexed 0 and the last bit is at the leftmost side and is numbered or indexed 31. Bit 0 is the low-order bit. Thus, any alpha value between 0. Storing the Color Image pixel values into 2d array Storing the Color Image pixel values into 2d array i want to store the color image pixel values into 2d array and agiain the array have to store into a text file using java plz provide the code. This is called conversion tracking. Histograms help you determine whether an image has enough detail to make a good correction. If you have a 32bit image, then each pixel requires 32 bits or 4 bytes, again as a single value. It has some value for creating static images that are rotated, but for something like sprites in a game it's not very useful. If you wish to modify this, change the FileChooser. Back to Image ↑ Question. In Adobe Photoshop, learn how to view histograms and pixel values. Coderwall Ruby Python JavaScript Front-End Tools iOS. each dimension the value of the pixel for. Hello everyone. This tag specifies, in arbitrary units, how closely the values of the green pixels in the blue/green rows track the values of the green pixels in the red/green rows. JavaScript is the most popular lightweight scripting language which works in the major browsers such as Internet Explorer, Chrome, Safari, Firefox, and Opera. Indeed pixels are gradually getting smaller. A digital image is nothing more than data—numbers indicating variations of red, green, and blue at a particular location on a grid of pixels. Button label. Imagine- you can now have a gallery of images of all sizes!. Open the required image in MS Paint like you would open any other image. High-performance camera systems utilize design enhancements that greatly reduce the significance of read noise. Where an image has been created using the Image constructor, the width is of the image itself, not the WIDTH value of the display. However, there. If the method succeeds, it returns Ok, which is an element of the Status enumeration. The grey values in the original image and the modified image follow a linear relation in this algorithm. Each location in the grid represents one pixel in the image. For example if p is 100, then the test fails if 100 or more pixels are perceptably different. An ImageJ image stack consists of four parts, very similar to the above: The ImageStack instance: holds an array of pixel arrays, one per slice in the stack (LUT changes via temporary instances of StackProcessor). Converts a java. In the tutorial, the Numerical Aperture slider is utilized to control how image structure evolves as the objective numerical aperture is increased. Tip: Use the height property to set or return the value of the height attribute of an image. This code is the only one I have found that resizes the index page of my website (with lots of images) to fit the screen of my ipad without cutting off 20px on the side. What it does is display, in a window, the values of the pixels in a small square neighborhood (outlined in red) as the mouse is dragged over the image. In this set we will be converting a colored image to negative image. The pixels are accumulated in the original ColorModel if the same ColorModel is used for every call to setPixels, otherwise the pixels are accumulated in the default RGB ColorModel. (Note that color images are represented differently - each pixel has 3 values, one each for red, green, and blue. When first developed, it was intended to be a compliment to Java. Hi, does anybody know how to set the width and height of an excel cell to a specific size in pixel? I'm trying to place a picture. package com. In this program, I introduced you to a new Java program that can be used to edit the pixels in an image on a pixel-by-pixel basis. We also need a bit more storage space because the totals will go above the maximum value of a pixel - we'll. I found that I could get each pixel value(RGB and alpha value) of java. Reading Text from Images Using Java We take a look at some code that can help you to read text from an image with your Java application. A few weeks ago I was reading Satya Mallick's excellent LearnOpenCV blog. To get the index of the other color values of a pixel (green, blue, or alpha), you just add 1, 2, or 3 to the calculated index respectively. The pixels can be retrieved by using getRGB() function. Flushes all reconstructable resources being used by this Image object. GUIDE TO IMAGE SHARPENING. The secret of debugging is to debug one thing at at time. A value of zero means the two kinds of green pixels track closely, while a non-zero value means they sometimes diverge. import java. High-performance camera systems utilize design enhancements that greatly reduce the significance of read noise. The first byte in the file is at an offset of 0, so an image offset of 54 means that the image starts at the 55 th byte in the file. But I don't know how to get each pixel value from the class java. then i also need to set the color value to the pixel with the changed rgb values. Needs feature freshchallenges together with experiences. txt) was very large above then the size of image but when i was copied the pixel value directly in the text file (Note pad file) from matlab command window the size is much less as compared to that processso is there is any way to get the less size of text file. Valid entries are: TOP, MIDDLE, BOTTOM, RIGHT, LEFT, TEXTTOP, BASELINE, ABSMIDDLE, ABSBOTTOM. Now that you know how to grab any pixel that you want, let's put this into practice and grab color values from an image to change the color of a website background. Read Image Pixel By Pixel And Convert To Grayscale Color Using Simple Grayscaling method. PixelGrabber class available in java. The current release is ImageMagick 7. JAVA: GETTING PIXEL DATA FROM A GIF FILE: BACKGROUND: The Image object in Java is very nice. But i am facing the problems, as outlined below. It lacks a method for drawing pixels. Each location in the grid represents one pixel in the image. What we have at the end of this code is three arrays, each containing the count of each possible value of one color in the image. Cheers and thanks for the help. object) for details of this class. This tool can be used to examine how a filter changes the pixel data (also during with Preview). Using a 5×5 filter instead gives This result is not a significant improvement in noise reduction and, furthermore, the image is now very blurred. A 10x10 image is made up of a set of pixels in a grid 10 wide by 10 high, totaling 100 pixels. drawImage(image, dx, dy, dw, dh) takes an image, scales it to a width of dw and a height of dh, and draws it on the canvas at coordinates (dx, dy). Here is an example. Binary List of Pixels (0 and 1) Width of the picture Invert (White = 0, Black = 1) Draw Tool to convert an image into 0 and 1. CamanJS is very easy to extend with new filters and plugins, and it comes with a wide array of image editing functionality, which continues to grow. Needs provide to be able to have a rest, whilst giving you feeling of purpose. 3- Write this value at another image (say outputImage) at the same position x=0 and y=0. It is this value you will need when using the position for doing clever things like moving an element to the point of the click. how to get Pixel Width from Properties ?. I want to calculate the average pixel values in each rectangle marked area as I have an image with different levels of greyness in it starting from black to white. The Image Viewer displays information about the location and value of individual pixels in an image in the bottom left corner of the tool. Morphological image processing is a collection of non-linear operations related to the shape or morphology of features in an image. 0, can generate any new colour. Keywords: image file format, PPM, header, bits per pixel, color depth, high dynamic range image, return value optimization, RVO, copy elision. 2 MB (this is because there are 1024 bytes in a kilobyte and 1024 kilobytes in a MB). The ColorModel abstract class encapsulates the methods for translating a pixel value to color components (for example, red, green, and blue) and an alpha component. There are documentation examples and product demos showing how to do this, and I've shown this function in action several times in this blog. Consider the following code in which the starting image named image is all red (each pixel has red value 255, green value 0 and blue value 0) as shown below on the left and the resulting image shown on the right below is supposed to be all green, but is all yellow. Where each_pixel is simply a function that loops through the image and passes the red, green, and blue value of each pixel of its first argument to the function passed as its second argument. Open the required image in MS Paint like you would open any other image. I would be grateful if someone could help me in sorting this out. This code to divide the image to Blocks After the divided we take the avrege of each block with size 4*4 pixel and store values in new matrix image called (a) Then we want to compare the value of each pixel in matrix (a) with all the other values of pixels in the same matrix when we find value equal another values in the same matrix put in other postion of those value zero. Active 3 months ago. In this set we will be converting a colored image to an image with either red effect, green effect or blue effect. I compared the renderscript blur to the java Renderscript will use scripts written in C which will parallelize calculations for each pixel of your image. for instance if value of a pixel is 75, set it to zero or some another values. Pixel Transforms. Your program should read an image file either from local disk or from any URL and write the same image in the various formats like JPG, GIF, PNG, BMP into the local disc. The fifth parameter is for the text to print, and the final parameter the colour of the text. 0 may be selected for varying degrees of transparency. left We can assign coordinates to position an image by changing its style. imageio package. FileChooser expects the images to be in a folder called images, at the same level as the classes folder. PixelGrabber class can acquire pixel data synchronously or asynchronously. As you can see in picture 2 the image will display only zeros and ones, if the pixel color is diferent than white. Prerequisite. By default, the check box will be unchecked, therefore returning the. This can be represented visually by a two-dimensional array where each cell contains the numerical value of the pixel at that location. -but I can't use JPG's due to its limitations in regards to graphs, charts, etc. txt) was very large above then the size of image but when i was copied the pixel value directly in the text file (Note pad file) from matlab command window the size is much less as compared to that processso is there is any way to get the less size of text file. 12) Given an image with only 2 pixels and 3 possible values for each pixel, what is the number of possible image histograms that can be formed? A) 3 B) 6 C) 9 D) 12. (example tiling, separated planar, jpeg […]. I would be grateful if someone could help me in sorting this out. I'm quite new to javascript unfortunately and would be grateful for any help. First of all, the byte type in Java is an 8-bit signed two's complement integer. For use with FM Radio Receiver with RDS for Raspberry Pi [160520] Compatibility: officially supported - Raspberry Pi 2 , Raspberry Pi 3 ( including B+) officially unsupported - Raspberry Pi 1 and Raspberry Pi Zero Downloads: Raspberry Pi SD Card image Compile and Install QT for the Raspberry Pi A Radio App for Linux , why yet another one?. If a string is provided, however, any valid CSS measurement may be used for the width (such as 100px, 50%, or auto). Hey thereIm a beginner at labview, so i walked into a little problem. We've seen how to create an image pixel data array, and we've seen how to access it. Parameters. If the current pixel is green, I am at the end of a letter. The three main shapes are rectangles, circles and polygons. Java: Read Image Pixel By Pixel And Convert To Grayscale Color Using Simple Grayscaling method. It can store pixel values in a user-specified array or create a suitable array itself. The width attribute specifies the width of an image. There are documentation examples and product demos showing how to do this, and I've shown this function in action several times in this blog. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: