Convert cr2 to dds Online: cr22dds
You can use Tom's Editor to easily convert images from
Canon Digital Camera Raw Image .CR2 to Direct Show Surface
Tom's Editor is a free, online image manipulation and converter program.
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Canon Digital Camera Raw Image is an image format with extension CR2.
DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.