A UIImage that represents a grayscale version of another UIImage. (iOS / ObjC)
There's support for accurate (raw) grayscale conversion, natural grayscale, and NTSC natural grayscale.
Accurate grayscale means normalizing the colors in RGB space to grayscale range, while natural grayscale means normalizing using special multipliers that represent the amount of each color as perceived by the eye (i.e red will get a stronger gray color because it is emphasized by the brain).
This was originally in my other repository https://github.com/danielgindi/drunken-danger-zone/
- Hi! I am Daniel Cohen Gindi. Or in short- Daniel.
- danielgindi@gmail.com is my email address.
- That's all you need to know.
If you like what you see here, and want to support the work being done in this repository, you could:
- Actually code, and issue pull requests
- Spread the word
All the code here is under MIT license. Which means you could do virtually anything with the code. I will appreciate it very much if you keep an attribution where appropriate.
The MIT License (MIT)
Copyright (c) 2013 Daniel Cohen Gindi (danielgindi@gmail.com)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.