• ChaoticNeutralCzech
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    1 year ago

    This is a very unoptimized GIF. Did you know GIFs are limited to at most 256 colors (or 255+transparency) but the palette can be redefined (good export software automatically optimizes it at least according to the first frame)? As such, GIFs that are largely grayscale or sepia can do without dithering and still have smooth colors. (In this one, I would assign 248 colors for the black to white gradient plus 4 shades of red and blue. Or almost halve the file size by limiting the palette to the roughly 16 actually used colors.)

    Color palette export
    0:    #000000
    1:    #999999
    2:    #666666
    3:    #cccccc
    4:    #669999
    5:    #996666
    6:    #336666
    7:    #99cccc
    8:    #cc9999
    9:    #663333
    10:   #996699
    11:   #999966
    12:   #663366
    13:   #cc99cc
    14:   #cccc99
    15:   #666633
    16:   #9999cc
    17:   #99cc99
    18:   #333333
    19:   #666699
    20:   #669966
    21:   #ffcccc
    22:   #003333
    23:   #3300cc
    24:   #ffffff
    25:   #ff0000
    26:   #ccffff
    27:   #330000
    28:   #333366
    29:   #336633
    30:   #333300
    31:   #330033
    32:   #ccccff
    33:   #ccffcc
    34:   #000099
    35:   #990000
    36:   #000033
    37:   #0033ff
    38:   #ff3333
    39:   #0033cc
    40:   #660000
    41:   #cc0000
    42:   #003300
    43:   #3333cc
    44:   #3333ff
    45:   #000066
    46:   #330099
    47:   #003399
    48:   #ff0033
    49:   #330066
    50:   #ff3300
    51:   #0000cc
    52:   #003366
    53:   #3366cc
    54:   #6699cc
    55:   #9966cc
    56:   #cc6666
    57:   #6666cc
    58:   #336699
    59:   #6633cc
    60:   #cc3333
    61:   #663399
    62:   #333399
    63:   #cc6633
    64:   #993333
    65:   #ff9999
    66:   #9999ff
    67:   #ff9966
    68:   #cc3366
    69:   #9966ff
    70:   #6699ff
    71:   #3366ff
    72:   #ff6666
    73:   #6633ff
    74:   #6666ff
    75:   #99ccff
    76:   #996633
    77:   #cc99ff
    78:   #660033
    79:   #cc0033
    80:   #ffcc99
    81:   #ffffcc
    82:   #ff3366
    83:   #ff99cc
    84:   #663300
    85:   #993300
    86:   #ffccff
    87:   transparent
    88:   #000000
    89:   #000000
    90:   #000000
    91:   #000000
    92:   #000000
    93:   #000000
    94:   #000000
    95:   #000000
    96:   #000000
    97:   #000000
    98:   #000000
    99:   #000000
    100:  #000000
    101:  #000000
    102:  #000000
    103:  #000000
    104:  #000000
    105:  #000000
    106:  #000000
    107:  #000000
    108:  #000000
    109:  #000000
    110:  #000000
    111:  #000000
    112:  #000000
    113:  #000000
    114:  #000000
    115:  #000000
    116:  #000000
    117:  #000000
    118:  #000000
    119:  #000000
    120:  #000000
    121:  #000000
    122:  #000000
    123:  #000000
    124:  #000000
    125:  #000000
    126:  #000000
    127:  #000000
    

    At least the frame delta data is limited to the actually changing rectangle, as it should be.

    I would advocate for APNG, WebP or even MP4 but not all browsers play them on a loop by default.

    • @Aiastarei
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      31 year ago

      This is the nerdiest comment I’ve ever read, I love it

      • ChaoticNeutralCzech
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        31 year ago

        I have been nerdier on Reddit before, and I’m happy to bring that over here. (You won’t see my Reddit nerdposts though, they have been overwritten by PowerDeleteSuite.)

    • DarwinOPM
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      -21 year ago

      I agree with you. I changed it with a higher quality one.

      • ChaoticNeutralCzech
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        1 year ago

        This one has higher resolution and no unhelpful dithering. Also the color palette, while reducible to 64 or fewer colors instead of 256, is actually somewhat optimized (there is no green or yellow).

        Color palette export
        0:   #a0a0a0
        1:   #606060
        2:   #c0c0c0
        3:   #000000
        4:   #909090
        5:   #808080
        6:   #707070
        7:   #b0b0b0
        8:   #505050
        9:   #d0d0d0
        10:  #404040
        11:  #303030
        12:  #e0e0e0
        13:  #202020
        14:  #2020e0
        15:  #ffffff
        16:  #ff1010
        17:  #101010
        18:  #700000
        19:  #101070
        20:  #1010b0
        21:  #bf0c0c
        22:  #000030
        23:  #300000
        24:  #1010c0
        25:  #2020d0
        26:  #ef0f0f
        27:  #500000
        28:  #101090
        29:  #000020
        30:  #200000
        31:  #0d0d58
        32:  #cf0d0d
        33:  #900000
        34:  #000010
        35:  #100000
        36:  #d00000
        37:  #0f0f67
        38:  #1010a0
        39:  #101080
        40:  #400000
        41:  #000040
        42:  #a00000
        43:  #600000
        44:  #800000
        45:  #707090
        46:  #4040d0
        47:  #9090ff
        48:  #ff4c4c
        49:  #ff8888
        50:  #906060
        51:  #3030e0
        52:  #ffc3c3
        53:  #808090
        54:  #e01010
        55:  #101020
        56:  #acacff
        57:  #a0a0d0
        58:  #4040c0
        59:  #101050
        60:  #2020a0
        61:  #c8c8ff
        62:  #505080
        63:  #ffe1e1
        64:  #7070a0
        65:  #ff2020
        66:  #303060
        67:  #101060
        68:  #3030d0
        69:  #202090
        70:  #101040
        71:  #2020c0
        72:  #ffb4b4
        73:  #8080a0
        74:  #5a5aff
        75:  #7070e0
        76:  #39302e
        77:  #4040b0
        78:  #404050
        79:  #202030
        80:  #707080
        81:  #6060b0
        82:  #303040
        83:  #7576ff
        84:  #9090c0
        85:  #d02020
        86:  #ffa5a5
        87:  #201010
        88:  #6060c0
        89:  #e02020
        90:  #401010
        91:  #404070
        92:  #505060
        93:  #ff3d3d
        94:  #303070
        95:  #d5d5ff
        96:  #d04040
        97:  #404090
        98:  #e3e3ff
        99:  #3030c0
        100: #101030
        101: #4040a0
        102: #403030
        103: #202080
        104: #c01010
        105: #5050c0
        106: #2020b0
        107: #6060a0
        108: #704040
        109: #202050
        110: #8080b0
        111: #9090a0
        112: #303090
        113: #501010
        114: #4c4dff
        115: #202070
        116: #ffd2d2
        117: #302020
        118: #d01010
        119: #ff6a6a
        120: #ff7979
        121: #ff9696
        122: #404080
        123: #606070
        124: #a05050
        125: #a04040
        126: #a01010
        127: #3030b0
        128: #9090b0
        129: #908080
        130: #505070
        131: #c03030
        132: #8080d0
        133: #c06060
        134: #5050e0
        135: #602020
        136: #806060
        137: #606090
        138: #d03030
        139: #a07070
        140: #c0c0d0
        141: #d05050
        142: #7070b0
        143: #7070c0
        144: #7070d0
        145: #605050
        146: #5050d0
        147: #5050b0
        148: #902020
        149: #505090
        150: #504040
        151: #402020
        152: #3030a0
        153: #303080
        154: #303050
        155: #ff5b5b
        156: #b01010
        157: #b08080
        158: #b05050
        159: #703030
        160: #202040
        161: #801010
        162: #b02020
        163: #b09090
        164: #503030
        165: #202060
        166: #301010
        167: #4040e0
        168: #c05050
        169: #8383ff
        170: #901010
        171: #b0b0c0
        172: #904040
        173: #a03030
        174: #efb3b3
        175: #babaff
        176: #3f408b
        177: #5050a0
        178: #c02020
        179: #907070
        180: #e03030
        181: #b0b0d0
        182: #c04040
        183: #a06060
        184: #b0a0a0
        185: #8080e0
        186: #a08080
        187: #8080c0
        188: #807070
        189: #c07070
        190: #404060
        191: #a09090
        192: #4f50e7
        193: #a0a0e0
        194: #b03030
        195: #b0b0e0
        196: #c08080
        197: #c09090
        198: #601010
        199: #706060
        200: #705050
        201: #b07070
        202: #702020
        203: #606080
        204: #6768ff
        205: #6060e0
        206: #1f20d0
        207: #cfb1b1
        208: #701010
        209: #a0a0c0
        210: #d06060
        211: #603030
        212: #d07070
        213: #2f30e0
        214: #804040
        215: #502020
        216: #d09090
        217: #d0a0a0
        218: #d0c0c0
        219: #d0b0b0
        220: #6060d0
        221: #d5d5e1
        222: #8f2727
        223: #d78d8d
        224: #8b3232
        225: #4f50c1
        226: #5f60c4
        227: #8f5353
        228: #955959
        229: #9c9ce8
        230: #ef7878
        231: #ef8686
        232: #e29898
        233: #a42d2d
        234: #a3a3b0
        235: #cfa2a2
        236: #2f30df
        237: #2f30c6
        238: #c5c6eb
        239: #b14949
        240: #efd1d1
        241: #1f20aa
        242: transparent
        243: #000000
        244: #000000
        245: #000000
        246: #000000
        247: #000000
        248: #000000
        249: #000000
        250: #000000
        251: #000000
        252: #000000
        253: #000000
        254: #000000
        255: #000000
        

        Don’t worry about optimizing your GIFs, that is a rant about a problem that needs to be solved by someone else. Just accept the higher compatibility but worse quality/bitrate ratio and move on.

        • @9point6
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          1 year ago

          Just accept the higher compatibility but worse quality/bitrate ratio and move on.

          Glad you said this, because honestly there’re diminishing reasons to use gif in 2023, compatibility with the long tail is pretty much it

          • ChaoticNeutralCzech
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            11 year ago

            I tried posting a short looping soundless animation on Reddit over two years ago and GIF was the only format (I also tried WebP, APNG and mp4) that played automatically on loop. I made sure to optimize the palette, though. Also, my preferred animated bitmap editor (LogoMotion, 2002 abandonware) only exports GIF.