<div>
what is the bmp's bitdepth? for 256- images, you could simply set up a list, iterate through all the pixels &amp;&nbsp;count the palette ref's. &nbsp;For small bmp of hifger bit depths I would recomend trying to iterate through all the pixels, but use an accumulator to find the ave. rgb values (or an average of the squares). &nbsp;If using large true color images, you may want to subdivide the bmp, find the most common color in the sub-regions.<br />
<br />
GL<br />
Mike
</div>


what is the bmp's bitdepth? for 256- images, you could simply set up a list, iterate through all the pixels & count the palette ref's.  For small bmp of hifger bit depths I would recomend trying to iterate through all the pixels, but use an accumulator to find the ave. rgb values (or an average of the squares).  If using large true color images, you may want to subdivide the bmp, find the most common color in the sub-regions.

GL
Mike

<div>
I can't make an assumption about the color depth as the BMP is loaded by the user of the application.
</div>


I can't make an assumption about the color depth as the BMP is loaded by the user of the application.

<div>
<div class="content wysiwyg-content">
I tried searching the WWW for this... but I wasn't sucessful in finding anything useful.<br />
<br />
Given that I have a BMP loaded in a TCanvas... How would I determine (in Pascal) the most popular color? <br />
<br />
Basicly, Given an unknown BMP I have already loaded on the background of a Form - I want to extract the most popular color from that Background BMP and set my label backgrounds to the that color. Then somehow &quot;invert&quot; the color to set the font's color.<br />
<br />
So, the requirements are:<br />
1) In Pascal puesdo-code.<br />
2) Determine the most popular color.<br />
3) invert that color.<br />
<br />
Ideas? Comments?<br />
John
</div>
</div>


I tried searching the WWW for this... but I wasn't sucessful in finding anything useful.

Given that I have a BMP loaded in a TCanvas... How would I determine (in Pascal) the most popular color? 

Basicly, Given an unknown BMP I have already loaded on the background of a Form - I want to extract the most popular color from that Background BMP and set my label backgrounds to the that color. Then somehow "invert" the color to set the font's color.

So, the requirements are:
1) In Pascal puesdo-code.
2) Determine the most popular color.
3) invert that color.

Ideas? Comments?
John

D3: Most Popular color in a BMP

Delphi is the most powerful Object Pascal IDE and component library for cross-platform Native App Development with flexible Cloud services and broad IoT connectivity. It provides powerful VCL controls for Windows 10 and enables FMX development for Windows, Mac and Mobile. Delphi is your choice for ultrafast Enterprise Strong Development™. Look for increased memory for large projects, extended multi-monitor support, improved Object Inspector and much more. Delphi is 5x faster for development and deployment across multiple desktop, mobile, cloud and database platforms including 32-bit and 64-bit Windows 10.