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javaimagejavax.imageioimage-compressionrun-length-encoding

Java Bitmap RLE8 format

Does Java ImageIO (or any other image handlers) support BI_RLE8 image format? The only thing I have managed to find is BMPImageWriteParam but I have no idea whatsoever how to use that. Any help would be wonderful.

Solution

  • See this example for how to write using ImageWriter and using ImageWriteParam (use an instance of BMPImageWriteParam in your case). Scroll a bit down to find the write example.

    Instead of the line:

    ImageWriteParam param = writer.getDefaultWriteParam();

    You should insert something like:

    BMPImageWriteParam param = new BMPImageWriteParam();
param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
param.setCompressionType("BI_RLE8");

    You can safely pass null for thumbnails and metadata (... in the example).