Coloring a B&W Sat map

DW
Posted By
David Williamson
Sep 3, 2003
Views
292
Replies
1
Status
Closed
I have 2 satelite map images, these maps join together, however one map was taken in color and the other is black and white.

Is there any apps or techniques where color information from the colored image may be taken and transferred to the black and white image to color it.

I could imagine an App that could take the colored image and reduce it to black and white. certain grey shades would map to only a few possible colors. Then by training you could match the transformed greys from the colored image to equal greys in the black and white image.

I have tried using the magic wand to select grey shades from the B&W image and then filling with custom patterns taken from the colored image with some success but I feel there is a better more efficient way.

Note that the sat maps tend to only contain greens and yellows and so is not a color intense image

I look forward to any comments or advice
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K
Kingdom
Sep 3, 2003
"David Williamson" wrote in
news:3f55ca78$:

I have 2 satelite map images, these maps join together, however one map was taken in color and the other is black and white.
Is there any apps or techniques where color information from the colored image may be taken and transferred to the black and white image to color it.

I could imagine an App that could take the colored image and reduce it to black and white. certain grey shades would map to only a few possible colors. Then by training you could match the transformed greys from the colored image to equal greys in the black and white image.

I have tried using the magic wand to select grey shades from the B&W image and then filling with custom patterns taken from the colored image with some success but I feel there is a better more efficient way.

Note that the sat maps tend to only contain greens and yellows and so is not a color intense image

I look forward to any comments or advice
——=_NextPart_000_0028_01C3725E.CD92FB40
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<DIV><FONT face=Arial size=2>I have 2 satelite map images, these maps join together, however one map was taken in color and the other is black and white.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV> <DIV><FONT face=Arial size=2>Is there any apps or techniques where color information from the colored&nbsp;image may be taken and transferred to the black and white image to color it.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV> <DIV><FONT face=Arial size=2>I could imagine an App that could take the colored image and reduce it to black and white. certain grey shades&nbsp;would map to only a few possible colors. Then by training you could match the transformed greys from the colored image to equal greys in the black and white image.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV> <DIV><FONT face=Arial size=2>I have tried using the magic wand to select grey shades from the B&amp;W image and then filling with custom patterns taken from the colored image with some success but I feel there is a better more efficient way.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV> <DIV><FONT face=Arial size=2>Note that the sat maps tend to only contain greens and yellows and so is not a color intense image</FONT></DIV> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>I look forward to any comments or advice</FONT></DIV></BODY></HTML>
——=_NextPart_000_0028_01C3725E.CD92FB40–

Errr no. but you can do a good job by hand.
use the eye droper tool to sample the colour on the colour map select a suitable brush size and set the mode to overlay and paint over the b/w image.

—
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