PNG: The Definitive Guide

List of Figures

Figure 1-1	Original, 24-bit image; same image after quantization; same image after quantization and dithering
Figure 1-2	Portrait with an oval alpha mask against a white background and against a black background
Figure 1-3	Gray text anti-aliased against a white background, displayed against both white and black backgrounds
Figure 1-4	Comparison of GIF interlacing, normal PNG interlacing, PNG with interpolation, and PNG with sparse display
Figure 1-5	Fireworks 1.0 Export Preview window showing RGBA-palette options
Figure 1-6	Example of Fireworks 1.0 RGBA-palette image showing strong banding
Figure 1-7	Fireworks 1.0 Export Preview after choosing Index Color transparency twice, showing transparency (white artifacts) in opaque regions
Figure 1-8	Example of a Fireworks 1.0 image with single-color transparency, displayed against the “wrong” background
Figure 4-1	Photoshop 5.0 RGB Setup window
Figure 4-2	Photoshop 5.0 File Info window
Figure 4-3	Photoshop 4.0 Monitor Setup window
Figure 4-4	ImageReady 1.0 Optimize palette for 24-bit PNG, with Matte pull-down menu
Figure 4-5	ImageReady 1.0 Optimize palette for 8-bit (colormapped) PNG
Figure 4-6	ImageReady 1.0 optimized preview with 160 transparent entries, showing artifacts
Figure 4-7	ImageReady 1.0 optimized preview with 224 transparent entries, showing degraded facial tones
Figure 4-8	Paint Shop Pro 5.0 alpha mask window
Figure 4-9	The GIMP 1.0's Lasso options window, tool palette, and main image window
Figure 8-1	PNG chunk structure
Figure 8-2	Layout of the simplest PNG
Figure 8-3	Layout of the second-simplest PNG
Figure 8-4	Schematic of an 8 × 8 tile after the third pass and after the fifth pass
Figure 10-1	Typical chromaticity diagram
Figure 12-1	Layout of the simplest MNG
Figure 12-2	Layout of the second simplest MNG
Figure 12-3	Layout of an animated MNG
Figure 12-4	Layout of an algorithmic MNG
Figure 12-5	Layout of an alpha-JNG MNG
Figure C-1	Demonstration of progressive alpha-blending against a simulated web-page background
Figure C-2	Chromaticity diagram for a particular device
Figure C-3	Effects of JPEG compression on sharp-edged features
Figure C-4a	Second pass (26%) of progressive JPEG, without smoothing by the decoder
Figure C-4b	Second pass of progressive JPEG, with smoothing
Figure C-4c	Fifth pass (40%) of progressive JPEG, with smoothing
Figure C-5	An 8-bit palette image with partial transparency, displayed against different backgrounds