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One color entry in a single GIF or PNG image's palette can be defined as "transparent" rather than an actual color. This means that when the decoder encounters a pixel with this value, it is rendered in the background color of the part of the screen where the image is placed, also if this varies pixel-by-pixel as in the case of a background image .
[35] [36] A GIF image can include multiple image blocks, each of which can have its own 256-color palette, and the blocks can be tiled to create a complete image. Alternatively, the GIF89a specification introduced the idea of a "transparent" color where each image block can include its own palette of 255 visible colors plus one transparent color.
Before compiling a gif with transparency, use a graphic editor such as Paint Shop Pro or some other editor capable of creating transparency. All BMP frames are opened in the graphic editor, use 'Save As' gif for each frame, and select the option to target the background color for removal before saving the individual frames in gif format. The ...
KolourPaint is a free and open-source raster graphics editor by KDE. It is similar to Microsoft Paint before the version shipped with Windows 7, [4] but has some additional features such as support for transparency, color balance and image rotation. [5] [6]
25 out of 55 usable colors (12 hues by 4 luminosity levels, + 7 greys); 1 background color, four 3-color (plus transparent) tile palettes and four 3-color (plus transparent) sprite palettes. Sega Master System (1985) 32 colors out of 64 (2 bits for each of red, green, and blue) NEC PC-Engine/TurboGrafx-16 (1987) 482 colors out of 512
PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF)—unofficially, the initials PNG stood for the recursive acronym "PNG's not GIF". [7] PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without an alpha channel for transparency), and ...
LazPaint is a free and open-source cross-platform [nb 1] lightweight image editor with raster and vectorial layers created with Lazarus.The software aims at being simpler than GIMP, [5] is an alternative to Paint.NET and is also similar to Paintbrush.
A single palette entry in an indexed color image can be designated as a transparent color, in order to perform a simple video overlay: superimposing a given image over a background in such way that some part of the overlapped image obscures the background and the remaining not. Superimposing film/TV titles and credits is a typical application ...