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• C# Image Deskew

  - by Brett

  Has anyone seen any image deskew algorithms in c#? I have found: http://www.codeproject.com/KB/graphics/Deskew_an_Image.aspx but unfortunately, it doesn't do very much for images without text. I am specifically trying to auto deskew an image of a book with solid edges, but minimal text. Has anyone seen anything that may be able to do this?

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• Float PPM image file format?

  - by Luca

  I've found a PPM image with the header starting with PF. The resolution number is stored in floating point (-1.000). No comments are inserted to get how it was produced. From the resolution, each pixel is composed by 12 bytes (4 bytes per component)... I suppose they are float or integer numbers. The problem is that I cannot get a clear image.…

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• how does data clustering help in image or pattern recognition

  - by anon

  I have been playing around with different data clustering algorithms working on finding clusters between random data points represented an nodes, I keep reading that data clustering is used for image recognition. I am failing to make the connection, how does clustering data help in recognizing an image or in facial recognition. can someone…

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• selecting the pixels from an image in opencv

  - by ajith

  hi everyone, this is refined version of my previous question http://stackoverflow.com/questions/2602628/computing-matting-laplacian-matrix-of-an-image actually i want to do following operation... summation for all k|(i,j)?wk [(Ii-µk)*(Ij-µk)]...where wk is 3X3 window & µk is mean of wk...here i dont know how to select Ii…

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• recognizing text effect on an image for photoshop

  - by Shishant

  Hello, I had my site designed through an designer, I have this image from it, I want to use same kind of image for other navigation menus which I want to add now, my designer is not supplying me with psd`s of it. How can I know what text effects and fonts I should use in photoshop to achieve the same kind of result? Thank You.

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• Skewing an image using Perspective Transforms

  - by user293895

  I'm trying to perform a skew on an image, like one shown here . I have an array of pixels representing my image and am unsure of what to do with them.

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• Resized image degrades in quality.

  - by Venkats

  I resized an image using Java2D Graphics class. But it doesn't look right. BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, type); Graphics2D g = resizedImage.createGraphics(); g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null); g.dispose(); Is it possible to scale an image without…

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• Linux Kernel not upgraded (from Ubuntu 12.04 to 12.10) - can't remove old kernels and can't install new apps

  - by Tony Breyal

  Question: How do I remove old kernel images which refuse to be removed? Context: Yesterday I upgraded Ubuntu from 12.04 to 12.10. However, the linux kernel has not upgraded from 3.2 to 3.5 as I would have expected. $ uname -r 3.2.0-32-generic $ uname -a Linux tony-b 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC…

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• HTML: Creating tool in HTML which enables to mark on an image

  - by A.Amidi

  I am creating an online survey-monkey for conducting a research. Participants are asked to mark the preferred places for building the parking on the map (image). In other words, participants should be able to mark on the image (map) wherever they want and subsequently I could have an access to the saved locations after survey. I…

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• Could anyone suggest me some image manipulation techniques to be added to my image viewer??

  - by avi

  Hello, I'm trying to develop a small image viewer just as an exercise to sharpen my programming skills. So far , all the features that I could think of adding to it are zooming in and out, inverting the colors of the image and resizing. Could anyone suggest me a few more features?? You are also welcome to suggest anything which…

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• Free file/image hosting website with api [closed]

  - by KoolKabin

  Possible Duplicate: Which image sharing websites supports file uploading dynamically via api I would like to know is there any free images/file hosting website which will allow users to upload image to its website using api? I tried with imageshack.us its fine only problem with it is that i could not make upload the…

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• ubuntu image size 732 mb - too big for cd

  - by memius

  i have an old pc that can't handle a boot stick install, so i have to create an actual, old fashioned boot cd. however, the image size for ubuntu 12.04 is 732mb, which is too large for cds, which can hold only 700mb. the maintainers of ubuntu 12.04 say the image size will never go over 700mb, and indeed, the download size…

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• Relative Resizing of Forms in C#

  - by xarzu

  What is the magic that makes components cling to the edges of a form? I had thought that one must use the resize event of the form and them force each element in the form to resize. But then I saw some sample code which, even when I am editing the form, the elements seem to adhere to a percentage of the space they take up…

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• Relative Resizing of Forms in .NET

  - by xarzu

  What is the magic that makes components cling to the edges of a form? I had thought that one must use the resize event of the form and them force each element in the form to resize. But then I saw some sample code which, even when I am editing the form, the elements seem to adhere to a percentage of the space they take up…

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• Convert .png image to .gif image

  - by Brigadier Jigar

  Hello friends, In my project, I have so many .png images. They are working properly in Firefox but when I run my project on Internet Explorer, i get white background in that images. I have used some Image converters but they are also not giving the proper result. After converting, the resolution gets changed. So can any one…

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• how to set the background image property of a div to a dynamically generated image

  - by tixrus

  I have some divs and each one has its own background image. The base images as stored is just a black silhouette. What I would like to do is use the PHP GD package to modify the color of those images somewhat randomly and have the modified randomly coloured images be the background images of the divs. One way to do…

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• Scale an image which is stored as a byte[] in Java

  - by Sergio del Amo

  I upload a file with a struts form. I have the image as a byte[] and I would like to scale it. FormFile file = (FormFile) dynaform.get("file"); byte[] fileData = file.getFileData(); fileData = scale(fileData,200,200); public byte[] scale(byte[] fileData, int width, int height) { // TODO } Anyone knows an easy…

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• how to set the output image use com.android.camera.action.CROP

  - by adi.zean

  I have code to crop an image, like this : public void doCrop(){ Intent intent = new Intent("com.android.camera.action.CROP"); intent.setType("image/"); List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent,0); int size = list.size(); if (size == 0 ){ Toast.makeText(this, "Cant find…

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• Scaling an Image in GWT

  - by Daniel

  Changing the size of an Image Widget in GWT changes the size of the image element, but does not rescale the image on the screen. Therefore, the following will not work: Image image = new Image(myImageResource); image.setHeight(newHeight); image.setWidth(newWidth); image.setPixelSize(newWidth, newHeight); …

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• Where will the image be saved? [closed]

  - by Dummy Derp

  import java.awt.Dimension; import java.awt.Rectangle; import java.awt.Robot; import java.awt.Toolkit; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import java.io.File; ... public void captureScreen(String fileName) throws Exception { Dimension screenSize =…

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• Image mapping using lookup tables [on hold]

  - by jblasius

  I have an optimization problem. I'm using a look-up table to map a pixel in an image: for (uint32_t index = 0u; index < imgSize; index++) { img[ lt[ index ] ] = val; } Is there a faster way to do this, perhaps using a reinterpret_cast or something like that? I am…

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• On-the-fly lossless image compression

  - by geschema

  I have an embedded application where an image scanner sends out a stream of 16-bit pixels that are later assembled to a grayscale image. As I need to both save this data locally and forward it to a network interface, I'd like to compress the data stream to reduce the…

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• Cropping image with ImageScience

  - by fl00r

  ImageScience is cool and light. I am using it in my sinatra app. But I can't understand how can I crop image with not square form and how can I make thumbnail with two dimensions. As I found on ImageScience site: ImageScience.with_image(file) do |img| …

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• Scale image to completely fill bounding box

  - by Larsenal

  For instance, if I need to fill a bounding box that is 100px wide by 50px tall, the following input images would have the following behavior: 200w x 200h gets scaled down 50% and 25% gets chopped off the top and bottom. 200w x 100h gets scaled down 50%…

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• IE6 image scaling with bicubic filter

  - by thehuby

  I have a project where I have to resize some images in the actual browser side. IE8, FF3 et al all apply a filter to smooth the resizing of the image, so in these browsers everything looks good. In IE7 I have applied the following fix which works…

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