* BufferedImage corresponding to provided Image. * image Image to be converted to BufferedImage. ImageIO.write(transparentImage, "PNG", out) Out.println("Copying file " + inputFileName + " to " + outputFileName) įinal BufferedImage source = ImageIO.read(in) įinal Image imageWithTransparency = makeColorTransparent(source, new Color(color)) įinal BufferedImage transparentImage = imageToBufferedImage(imageWithTransparency) įinal File out = new File(outputFileName) : inputFileName.substring(0,decimalPosition)+".copy.png" Public static void main(final String arguments) throws Exception * image and the second (optional) argument being the path/name of the * with the first (required) argument being the path/name of the source * arguments Command-line arguments: only one argument is required * Main function for converting image at provided path/file name to have * make a color transparent in a BufferedImage and save as PNG" * transparent, adapted with minor changes from StackOverflow thread "How to * Class containing code for converting an image's white background to be ImageTransparency.java package dustin.examples The next Java code listing contains my very slight adaptation of the code provided by them and is provided mainly for easy comparison to the ported Groovy code to be shown later. With these illustrative code examples in place, the most difficult part of the task is already completed. PhiLho and corgrath provide Java code examples illustrating conversion of a background color to a transparent background for an image in the StackOverflow thread How to make a color transparent in a BufferedImage and save as PNG. In this post, I show a Groovy script that does perform this conversion based on an easy-to-follow example of how to do this in Java that is available in the StackOverflow thread How to make a color transparent in a BufferedImage and save as PNG. I figured that someone had already done this in Java and my idea was to "port" the Java to Groovy. However, I have wanted a simple command-line script to do this so that I don't need to open a tool, load a file, select the color to covert, and then save the new image with the transparent background. ![]() There are numerous tools that support conversion of a background in an image to be transparent (assuming the image format supports transparency). The next screen snapshot shows the difference in appearance between an image with a white background on a non-white background and an image with a transparent background. More specifically, I typically need to convert an image with a white background to have a transparent background so that it blends more naturally with a non-white background. javafx.properties src.zipĪdd the following to the end of your ~/.I occasionally need to convert the background color of a particular image to be transparent so that the image looks better on medium with backgrounds of colors other than the image's original background color. OpenJDK Server VM (build 11.0.9+11-post-Raspbian-1deb10u1, mixed mode)Ĭheck that you have found the OpenJFX lib $ ls /usr/share/openjfx/lib OpenJDK Runtime Environment (build 11.0.9+11-post-Raspbian-1deb10u1) Please also see: for pretty much the same thing I'm showing you here.Ĭheck that you can run the java $ /usr/lib/jvm/java-11-openjdk-armhf/bin/java -version gz file use that path to the lib directory. The repository puts openjfx into /usr/share/openjfx/lib and again if you installed it from a. gz file and put it someplace else then use that path as the path to the java and javac programs. So the repository put all the Java into /usr/lib/jvm/java-11-openjdk-armhf. If not you will have to change the path to the java and javac programs. So I'm going to assume that you installed openjdk-11 from the repository. It can be a bit daunting to figure out what's actually going on (not that I really have a good handle on it) and make it work. If you have any time to help me it would be great ! I tried to use openjdk11 without success that's why I use Bellsoft.
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