By sdsunqian
on Thu, 06/27/2013 - 01:15
The default frame color of a marker is black, I tried other colors like bule or green, works fine. But some color like yellow, is not working. It seems dark colors are better. I guess QCAR will convert framemarker to a grayscale image, then might use a threshold for binarization.
Is there any tips for frame color selection? Pls tell me how to pick a better color of framemarker.
Frame color of marker
In general, you should pick a color that ensures a good contrast with the binary pattern on the border of the marker. But this can also be influenced by lighting conditions of your environment, so it's hard to set a precise rule here.
Frame color of marker
Normally we print markers on white paper, so dark color has better contrast. Thanks!