An interesting, probably slicker approach... but I wonder if there may be something like a 'refresh' of the palette required?

As it stands, I don't think I'm dealing with a 'palette-ed' image here:-

c:\> ffprobe -hide_banner ruddy.png
Input #0, png_pipe, from 'ruddy.png':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: png, rgb24(pc), 320x234, 25 fps, 25 tbr, 25 tbn

c:\> mediainfo ruddy.png
General
Complete name                            : ruddy.png
Format                                   : PNG
Format/Info                              : Portable Network Graphic
File size                                : 84.9 KiB

Image
Format                                   : PNG
Format/Info                              : Portable Network Graphic
Width                                    : 320 pixels
Height                                   : 234 pixels
Bit depth                                : 24 bits
Compression mode                         : Lossless
Stream size                              : 84.9 KiB (100%)

[download]

In reply to Re^2: Cannot Set Image Pixel to a Random Colour using GD by ozboomer
in thread Cannot Set Image Pixel to a Random Colour using GD by ozboomer

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.