How to get white background instead of default black background.
I am currently using TranslateDescriptor and MosaicDescriptor to merge some images (separate JPEGs) into a single image. I am fine-tunning the pixel-mapping translations for source-image 1 and source-image 2 to fit it correctly in my resulting image dimension and aspect ratio (all done in a matrix array.) However, since the source-images aren't fitting well, I am seeing black-backgrounds in all the "gaps" of the merged image.
I know that means - JAI is rendering it as a blank-space in its canvas, but how do I make it white-color instead of the default blank-black?