![]() I spent a LOT of time tuning this implementation and have had a lot of good feedback from folks deploying it in web apps and other Java projects. You can read through all the comments in the library (the code itself is doc'ed heavily) to see all the different JDK bugs that are worked around or optimizations that are made to improve the performance or memory usage. The library use the Java2D recommended incremental scaling for you to give you the best looking result. overly dithered GIF images).Īlso, if you want to force it to output the best looking result possible in Java, the API call would look like this: BufferedImage img = ImageIO.read(.) // load imageīufferedImage scaledImg = Scalr.resize(img, Method.QUALITY, 1280, 960) Your image proportions are honored, the library makes a best-guess at the method it should use based on the amount of change in the image due to scaling (FASTEST, BALANCED or QUALITY) and the best supported Java2D image types are always used to do the scaling to avoid the issue of "black" results or really terrible looking output (e.g. read in the original image from an input stream SeekableStream s SeekableStream.wrapInputStream ( inputStream, true. Once your image is of the desired file size, you can scale it back up to your desired pixel height and width when you display the image. ![]() Example code to resize would look like this: BufferedImage img = ImageIO.read(.) // load imageīufferedImage scaledImg = Scalr.resize(img, 1280, 960) If you set the width and height attributes of your ImageView to specific values, the system will automatically scale you images to fit. One really easy way to do this is to use very simple java image resizing library (Apache 2 license) that just does everything right for you. If that is the case, you would just target all your resize operations to size the target images to that size and get roughly the size constraint you want. For example, a 200kb compressed JPG might typically be say 1280x960 in size. tend to have similar file-sizes based on their resolutions. Even though a PGraphics is technically a PImage, it is not possible to rescale the. For instance, to make the width of an image 150 pixels, and change the height using the same proportion, use resize (150, 0). To make the image scale proportionally, use 0 as the value for the wide or high parameter. You can't easily resize an image from one file size to another, BUT, most JPG/PNG/GIF/etc. Resize the image to a new width and height.
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