File:Nes ntsc perscanline.gif: Difference between revisions
(uploaded a new version of "File:Nes ntsc perscanline.gif": Fixed the horizontal displacement error. Also added (subtle) dithering to help overcome the color differences arising from quantization (reduction to 256 colors).) |
(Persune uploaded a new version of File:Nes ntsc perscanline.gif) |
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Latest revision as of 12:38, 27 December 2024
A testcard picture, intentionally resembling Philips PM5544, but rendered with NES colors.
Rendered in 2048x240, then pixel-upscaled to 2048x1920, then lanczos-downscaled to 584x480. This method of scaling was chosen to best inhibit scaling related artifacts.
This image is part of a set illustrating the differences between palette-and-pixel-based and scanline-and-ntsc-signal-based rendering in NES emulation. This image shows the scanline-and-ntsc-signal-based rendering.
Note that the colors are not perfectly reproduced from the original rendering, due to GIF palette reduction. A NeuQuant-based method was used in order to generate the most optimal palette to represent it.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:38, 27 December 2024 | 584 × 480 (139 KB) | Persune (talk | contribs) | Remove saturation correction based on colorburst amplitude | |
16:56, 23 December 2024 | 584 × 480 (139 KB) | Persune (talk | contribs) | Updated composite filter code to reflect NTSC video decoding section | ||
21:56, 21 September 2021 | 584 × 480 (117 KB) | >Maintenance script | == Summary == Importing file |
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