crop

I was wondering if there is a way to capture an UIImage as it appears as-is viewed in an UIImageView based on its contentMode . For example, if I pass a 3:4 aspect ratio to a square UIImageView , and use "Aspect Fit" as the contentMode , then I'd expect to see white letterboxes in the left and right parts the image to fill out the square. Would it then be possible to take whatever appears and save it directly as an new UIImage with the letter boxing? Thanks! You can capture a "screen shot" of the way a UIImageView is actually displayed by calling CALayer's renderInContext: method. https:/

This jquery script can crop any image to correct size by tweaking the image url. This is the only Jquery script in web i have found for crop image of specific div/elements . Problem is suddenly the script is not able to crop image to correct size, the script's width-height variable is var w = 200 and var h = 150 but problem is width variable is not working, cropped images height and width became the same size. Means only height variable works, output cropped image became 150px X 150px . It should 200px X 150px. JS: var w = 200; var h = 150; $('.crop').find('img').each(function(n, image){ var

I've image with the size of (352 x 240) And I want to crop the white area (the selected area as show below). I use this code to crop image , private static Image cropImage(Image img, Rectangle cropArea) { Bitmap bmpImage = new Bitmap(img); Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat); return (Image)(bmpCrop); } But I can't find the exact rectangle area for my need ! How can I find Rectangle value of selected area ? I just want to crop this area !! Thanks ! If you want to do it yourself you certainly can. But the details of how to do it best will depend a lot on exactly how

I have image with white background and in that image i have some kind of shape - part of cloth. I need to find most left, up, right and bottom pixel. What is the most efficient way to do that? You can use the trimImage function to trim the image, and then look at the geometry and page info to find how the bounding box of the image that was left after trimming. $base = new Imagick(realpath('./trim.png')); $base->trimImage(0); $geometry = $base->getImageGeometry(); $pageInfo = $base->getImagePage(); printf ( "Width %d Height %d\n", $geometry['width'], $geometry['height'] ); printf( "OffsetX: %d

I'm having a tough time wrapping my head around how to figure out the math for cropping any image that has a higher aspect ratio than 4:3 to 4:3. For example, I may have some images that are 16:9 that I I want resized and then cropped to 4:3. The resize bit I already have working, but it's maintaining the same aspect ratio. I know I need to use Graphics.DrawImage() But I'm not entirely sure what the parameters should be nor how I derive those parameters. Here's what I do know: var dimension = (double)bigSide/smallSide if(dimension > 1.4) { Graphics.DrawImage(resImage, new Rectangle(?, ?, ?, ?)

I have a sprite sheet which has each image centered in a 32x32 cell. The actual images are not 32x32, but slightly smaller. What I'd like to do is take a cell and crop the transparent pixels so the image is as small as it can be. How would I do that in Java (JDK 6)? Here is an example of how I'm currently breaking up the tile sheet into cells: BufferedImage tilesheet = ImageIO.read(getClass().getResourceAsStream("/sheet.png"); for (int i = 0; i < 15; i++) { Image img = tilesheet.getSubimage(i * 32, 0, 32, 32); // crop here.. } My current idea was to test each pixel from the center working my