My little point & shoot has an interesting colour isolation feature. You can zoom in to an object and take a sample of its colour. Then zoom back out, take a shot and two images are saved, one standard and one isolated (anything in frame with the selected colour). It's not the preferred method of course, and it has trouble with some areas of colour especially if it's graduated. Sometimes though the unexpected results are pleasing, or at least interesting. I took these on Fuerteventura in the Canary Islands, some cropping and contrast enhancement but the colour isolation was done in-camera automatically at the time the shot was taken.
I used the yellow of the plastic bottle but for some reason the camera also picked up on some blue in the sky:
Not a bad job done here (the other two were yellow):
Beach umbrellas but the building was also yellow. To me this shot has a 1950s feel to it:
Stop sign - came out too dark and it's picked up on some red in the hillside:
I thought it did a good job here considering the shadows on the flag:
For best results of course it's always best to do this on the computer where you have proper control, but still fun to play and see what the camera comes up with. Taken with a Canon Ixus 85 IS (SD770 IS in the US).
| 
