Computer Graphics

Explore graphics, displays, and visual outputs of computers.

DirectDraw Surface Files: A Guide to DDS Textures

A DirectDraw Surface (.dds) file is a specialized container format designed to store uncompressed and block-compressed textures directly accessible by graphics hardware [1], [4]. By storing textures in GPU-ready formats alongside precomputed mipmaps, DDS files allow games to load textures with almost no processing directly into graphics memory [4]. Introduced by Microsoft with DirectX 7 […]

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Sum of Absolute Differences for Template Matching

The sum of absolute differences (SAD) is an image processing metric used in template matching to locate a target pattern within a larger image by computing the absolute differences between overlapping pixel intensities [1]. Because a value of 0 indicates an identical match, the optimal template position corresponds to the global minimum across the search […]

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