| List of features used in each test vector. |
| All the 'lossless_vec_1_*.webp' WebP files should decode to an image comparable to 'grid.pam' or, |
| equivalently 'grid.png'. |
| This synthetic picture is made of 16x16 grid-alternating pixels with RGBA values equal to |
| blue B=(0,0,255,255) and half-transparent red R=(255,0,0,128), according to |
| the pattern: |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| BRBRBRBRBRBRBRBR |
| RBRBRBRBRBRBRBRB |
| |
| The 'lossless_vec_2_*.webp' WebP files should decode to an image comparable |
| to 'peak.pam' or, equivalently 'peak.png'. Their alpha channel is fully |
| opaque. |
| |
| Feature list: |
| lossless_vec_?_0.webp: none |
| lossless_vec_?_1.webp: PALETTE |
| lossless_vec_?_2.webp: PREDICTION |
| lossless_vec_?_3.webp: PREDICTION PALETTE |
| lossless_vec_?_4.webp: SUBTRACT-GREEN |
| lossless_vec_?_5.webp: SUBTRACT-GREEN PALETTE |
| lossless_vec_?_6.webp: PREDICTION SUBTRACT-GREEN |
| lossless_vec_?_7.webp: PREDICTION SUBTRACT-GREEN PALETTE |
| lossless_vec_?_8.webp: CROSS-COLOR-TRANSFORM |
| lossless_vec_?_9.webp: CROSS-COLOR-TRANSFORM PALETTE |
| lossless_vec_?_10.webp: PREDICTION CROSS-COLOR-TRANSFORM |
| lossless_vec_?_11.webp: PREDICTION CROSS-COLOR-TRANSFORM PALETTE |
| lossless_vec_?_12.webp: CROSS-COLOR-TRANSFORM SUBTRACT-GREEN |
| lossless_vec_?_13.webp: CROSS-COLOR-TRANSFORM SUBTRACT-GREEN PALETTE |
| lossless_vec_?_14_.webp: PREDICTION CROSS-COLOR-TRANSFORM SUBTRACT-GREEN |
| lossless_vec_?_15.webp: PREDICTION CROSS-COLOR-TRANSFORM SUBTRACT-GREEN PALETTE |
