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Comparison with JPEG 2000

SUPPLEMENTAL MATERIAL: Compression Experiments Factoring Repeated Content Within and Among Images (SIGGRAPH 2008 submission 0064). Comparison with JPEG 2000. Original image 592 x 448 pixels. Our factored representation - epitome compressed to 5KB using JPEG 2000

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Comparison with JPEG 2000

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  1. SUPPLEMENTAL MATERIAL:Compression ExperimentsFactoring Repeated Content Within and Among Images(SIGGRAPH 2008 submission 0064)

  2. Comparison with JPEG 2000 Original image 592 x 448 pixels Our factored representation - epitome compressed to 5KB using JPEG 2000 - transform map compressed to 5KB JPEG 2000 compressionof original image - compressed to 10KB (same storage size) (Requires 796KB for rendering) (Requires 42KB for rendering) (Requires 796KB for rendering) - Our factoring is orthogonal to JPEG 2000, and at high compression rates it offers higher quality than JPEG 2000 alone. - As discussed further in the rebuttal, our motivation is to reduce memory usage of texture images for real-time rendering. Because JPEG 2000 requires decompression prior to rendering, we feel that this comparison is interesting but not completely appropriate.

  3. Close-ups Original image

  4. Close-ups Our factored representation, in 10KB

  5. Close-ups JPEG 2000 alone, in 10KB

  6. Original image 1792 x 944 pixels

  7. Our factored image representation - Epitome compressed using JPEG 2000 to 35KB - Transform map compressed to 35KB (for a total of 70 KB) (Requires 1.3MB for rendering)

  8. JPEG 2000 on original image Original image compressed using JPEG 2000 to 70 KB (Requires 5.1MB for rendering)

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