![]() ![]() Please refer to the repo for API changes and the latest features. January 10, 2017: SimpleImage 3.0 has been released. Please submit all issues and contributions to the project page. This project is actively maintained on GitHub. overlay() - overlay one image onto another to create a watermark effect.sepia() - apply a simulated sepia effect.pixelate() - pixelate the image to blocks of the specified size.blur() - apply selective or gaussian blur to the image.mean_remove() - apply the mean removal filter. ![]() contrast() - adjust the image's contrast.brightness() - adjust the image's brightness.desaturate() - convert the image to grayscale.square_crop() - trim the image to a square and resize to the specified size.crop() - crop an image from x1/y1 to x2/y2.best_fit() - proportionally resizes an image to fit within the specified width/height.fit_to_height() - proportionally resizes an image to the specified height.fit_to_width() - proportionally resizes an image to the specified width.resize() - resizes an image to the specified width/height.auto_orient() - adjusts the orientation based on the image's EXIF data.rotate() - rotates an image at the specified angle.flip() - flips an image vertically or horizontally.The following two lines will load image.jpg, flip it horizontally, rotate it 90 degrees, shrink it to fit within a 320x200 box, apply a sepia effect, convert it to a GIF, and save it to result.gif: $img = new SimpleImage('image.jpg') This class takes the headache out of dealing with images and features over 25 useful methods. If you love working with PHP but hate the GD library, you'll love the Simple Image PHP class I'm releasing today. I keep posts like this around for historical purposes and to prevent link rot, so please keep this in Here is the canonical nested range loops to accessĪll the pixels in an image.Heads up! This post was written in 2011, so it may contain information that is no longerĪccurate. As a bonus, it works on iOS, MacOS, Android and Windows. However sometimes you want to write loops to access pixels by their x,yĬoordinates. Image cropping that’s simple, free, and fast Crop photos online in JPG, PNG, etc. The "foreach" above is the easiest way to loop over all the pixels. y value must be in the range 0.height-1 (inclusive).x value must be in the range 0.width-1 (inclusive).Y=0 is the top row, growing towards the bottom X=0 is the left column, growing toward the right Access 1 pixel by its x,y coordinates: image.get_pixel(x, y) Width and height numbers should be integers Here is an older syntax to create a blank/white image that also works: Image = SimpleImage.blank(200, 100, 'black') An optional third argument can specify a color for the whole image of 'black', 'red', 'green', 'blue' or 'white: By default the image is white, every pixel (255, 255, 255).Create a blank/white image, here width 200 height 100 Setting a value less than 0 is changed to 0 internally Setting a value larger than 255 is changed to 255 internally Setting a value to a float like 3.5 is changed to int 3 internally Values outside that range are changed to be 0.255 within the image:.The red/green/blue values are stored in the image as int values in the range 0.255.Display the image - return the image, and our calling/framework code puts it on screen for you The online Crop image tool from Adobe Express transforms your images into the perfect size in seconds. pixel.x pixel.y # the x,y coord of the pixel.pixel.red = pixel.red // 2 # halve red red value pixel.red een pixel.blue # the 3 color values (read/write)Į.g.Each pixel has properties accessed with dots:.loop 'pixel' variable over all the pixels in the image Reads the image data into memory, returning a image reference to store in a variable. The simple CS106AP "SimpleImage" code provides basic digital image processing code for you to call. SimpleImage Reference Basic SimpleImage Functions ![]()
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