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TGA
The
TGA file formats supports to read and write of 1, 4, 8, 16, 24 bits per pixel
The TGA format is a format for defining raster or bitmap
images. Targa supports color maps, alpha channel, gamma value,
postage stamp image, textual information and developer-definable
data. Unlike other image formats, there are relatively few
variations.
Various compression models are supported. Targa images exist in both
compressed and uncompressed formats.
The TGA format is probably the most universally
supported 24-bit and 32-bit file format for PC applications. The
32-bit Targa format contains 24 bits of color data and 8 bits of
transparency data. Color support ranges from black and white,
indexed and RGB color. Since Windows does not recognize 16-bit and
32-bit depths, some applications may treat them as 24-bit images. A
16-bit image will be up-graded to a 24-bit image while a 32-bit
image will be down-graded to a 24-bit image.
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