Convert dib to icb

What is the difference between .dib and .icb?

Description: Generic Windows or OS/2 bitmap graphic; similar to a .BMP file, but has different header information; supports 1, 4, 8, and 24 bits per pixel if the image is uncompressed and 4 and 8 bits per pixel if the image uses RLE compression; a 24-bit DIB image contains 8 bits, or 1 byte for each RGB color.; The ICB file format, standing for Targa ICB Bitmap Image, is a type of image file associated with the Targa (Truevision Advanced Raster Graphics Adapter) image format. Targa files, including ICB, are known for their versatility in handling various types of digital images, including color, grayscale, and monochrome. The ICB variant is part of a broader family of Targa formats, which are often used in professional environments for digital video editing, animation, and graphic design.