And Just a Little More About Images
summary
Explanation of how images are represented in memory on iOS, comparing UIImage, CGImage and CIImage and their differences. Overview of Core Graphics and Core Image APIs, followed by building a custom CIFilter implemented with Metal shaders.
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chapters (11)
- 0:00Introduction
- 3:16What is an image and formats
- 8:18How images stored in memory
- 10:10Color spaces RGB, CMYK, YCbCr
- 18:58UIImage class and properties
- 24:00CGContext and pixel data
- 31:34Creating and copying bitmap images
- 36:04Applying filters to images
- 40:57Custom Metal filters
- 42:24Summary and resources
- 45:04Q&A
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