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On an access to the graphics RAM, the CPU commonly incurs a slight delay while waiting for the video controller to complete the data reads. [12] The addresses in the video DRAM are interleaved, which produces an unusual coordinate system for the pixel bitmap. If coordinates of a pixel are (x, y), and the bits of the x coordinate axis are ...
EPX can be used to scale bitmap fonts. From top to bottom: a) original font size; b) nearest-neighbor 2× scaling; c) EPX 2× scaling; d) nearest-neighbor 3× scaling; e) EPX 3× scaling. The AdvMAME3×/Scale3× algorithm (available in DOSBox via the scaler=advmame3x dosbox.conf option) can be thought of as a generalization of EPX to the 3× ...
OpenEXR is a high-dynamic range, multi-channel raster file format, released as an open standard along with a set of software tools created by Industrial Light & Magic (ILM), under a free software license similar to the BSD license.
In 2020, Apple released the iPhone 12 Pro and iPhone 12 Pro Max. Both of these devices support Apple ProRAW (as of iOS 16.0.3) output and viewing. The later Pro and Pro Max models also provide ProRAW output. [45] Two raw options are in fact available for capture: a traditional "Bayer RAW" and Apple's "ProRAW" both in 12-bit DNG. [46]
The iPhone 7 and later devices from Apple can capture media in HEIF or HEVC format. [76] Android smartphones like Xiaomi 12, OPPO Reno 7 5G, Samsung Galaxy S21 5G can capture images in HEIF format. Android 13 and higher support 10-bit camera output. [48] The Hasselblad X2D camera following updates had been updated to support 10-bit HEIF output ...
In some contexts, the term bitmap implies one bit per pixel, whereas pixmap is used for images with multiple bits per pixel. [3] [4] A bitmap is a type of memory organization or image file format used to store digital images. The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of ...
To define colors used by the bitmap image data (Pixel array) Mandatory for color depths ≤ 8 bits Gap1 Yes Variable size Structure alignment An artifact of the File offset to Pixel array in the Bitmap file header Pixel array No Variable size To define the actual values of the pixels The pixel format is defined by the DIB header or Extra bit masks.
Image scaling can be interpreted as a form of image resampling or image reconstruction from the view of the Nyquist sampling theorem.According to the theorem, downsampling to a smaller image from a higher-resolution original can only be carried out after applying a suitable 2D anti-aliasing filter to prevent aliasing artifacts.