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Example Images #4

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Rich Geldreich edited this page Feb 4, 2022 · 13 revisions

Note: I'm going to skip the delta images and statistics on this page, but they are present on the previous pages.

  • high_fidelity: 1080x1080 24bpp

Original image: 561,601 bytes, 3.85 bits/pixel (encoded with lodepng)

high_fidelity

RDO PNG: 363,467 bytes, 2.493 bits/pixel

rdopng high_fidelity.png -level 3 -two_pass -lambda 300

high_fidelity_1

RDO PNG: 188,568 bytes, 1.29 bits/pixel

rdopng high_fidelity.png -level 14 -two_pass -lambda 1500

high_fidelity_2

  • masterchief: 559x768 24bpp

Original image: 464,155 bytes, 8.65 bits/pixel (encoded with lodepng)

masterchief

RDO PNG: 214,551 bytes, 3.998 bits/pixel

rdopng masterchief.png -level 4 -two_pass -lambda 600

masterchief_rdo

RDO PNG: 172,080 bytes, 3.207 bits/pixel

rdopng masterchief.png -level 14 -two_pass -lambda 1400

masterchief_2_rdo

  • aliens: 768x432 24bpp

Original image: 522,584 bytes, 12.60 bits/pixel (encoded with lodepng)

aliens

RDO PNG: 261,332 bytes, 6.301 bits/pixel

rdopng aliens.png -level 6 -two_pass -lambda 1200

aliens_rdo

RDO PNG: 209,019 bytes, 5.040 bits/pixel

rdopng aliens.png -level 14 -two_pass -lambda 2000

aliens_2_rdo

  • crossyf: 1024x683 24bpp

Original image: 946,676 bytes, 10.83 bits/pixel (encoded with lodepng)

crossyf

RDO PNG: 323,624 bytes, 3.702 bits/pixel

rdopng crossyf.png -level 14 -two_pass -lambda 2000

Note: this is the first pass's output (pass0_output.png).

crossyf_rdo

RDO PNG: 267,207 bytes, 3.034 bits/pixel

rdopng crossfy.png -level 14 -two_pass -lambda 2000

crossyf_2_rdo

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