Targa is a popular output format in video industry because of its alpha channel support. It has two options:

  • Alpha Channel: If set, an additional byte per pixel is allocated for storing the alpha values. Alpha channel usually contains the transparency information: value 0 = fully transparent, value 255 = fully non transparent.

  • Compressed: Enables RLE compression, which can reduce the file size, especially when the image contains large constant color areas.