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27 lines
885 B
27 lines
885 B
12 years ago
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ImageStreams
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============
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Motivation
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----------
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Some time ago I had a project where I rendered something to a high quality buffer, which I wanted to export as a png. I used libpng++ for that, the downside was that this library allocated the image again (in a different format). But the only thing I wanted to do is convert my format to another format (pixel by pixel), so this allocation seemed redundant. That's why I wanted a image stream library.
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Features
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--------
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* Output streams for bmp and png image files
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* Grayscale and color
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* Low memory usage (because it streams)
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* Easy to use
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Uasge
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-----
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```C++
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png::gray_ostream image(1024, 768, "test.png");
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for(int y = 0; y < 768; ++y){
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for(int x = 0; x < 1024; ++x){
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image << png::gray_ostream::pixel(some_generation(x,y));
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}
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}
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// done, image is automatically saved (wtih RAII)
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```
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There are more examples in the main.cpp file.
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