[USER=112691]@thebestcpu[/USER] Interesting..............
When I originally tested this theory with multiple color samples on one layer, I got this. Note that the target ignore option is greyed out.
[ATTACH=full]145423[/ATTACH]
Next, I tried it with a single color sample and I got this. Which worked but the OP had a multi colored sample layer. Again, the target option is greyed out. **Step 2
[ATTACH=full]145424[/ATTACH]
WOW!!
Now your suggestion worked......note the target layer Ignore is now available...............where in the world did you find this??????? I searched everywhere looking for a solution to using "match Color" but nowhere was it ever mentioned to make a selection of one color on the multicolored sample layer!!!!! How did you figure this out???
[ATTACH=full]145425[/ATTACH]
Also, just in case it matters, the color of the wall is not an exact match to the sample. This sample point was the closet I could get to the actual color anywhere on the wall. But it is definitely close enough for me anyway!
[ATTACH=full]145426[/ATTACH]
**Step 2- My final opinion here is that "Match Color" with a single color sample layer is the best way to go about producing the most easy and consistent results based on specific color samples. I would just do a repeat process for each color by duplicating the wall layer as many times as needed for the number of samples I had. These could be grouped and easily turned off and on. I don't feel as though the "Match Color" process is what I would call editable as it is destructive and the process would have to be repeated. It could be slightly editable as long as you maintain a "Main Copy" of the original wall layer. I have not played with "Match Color" as a SO.
Now that I'm fascinated with the coloring of walls...............OCD.............I will still look for another technique that may work better!