removing colors

S
Posted By
shawnews
Nov 24, 2006
Views
227
Replies
2
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Closed
Hi…please see the image here so you’ll know what i’m talking about. http://www.coastalconsulting.ca/map_sample.jpg

OK..it’s a map with varying grades of color. You will see blue lines for the rivers, lakes etc and on the far right you see some black lines. I need to know if there is a quick / easy way to remove all colors but the blue and black?

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ND
Norm Dresner
Nov 24, 2006
"shawnews" wrote in message
| Hi…please see the image here so you’ll know what i’m talking about. | http://www.coastalconsulting.ca/map_sample.jpg
|
| OK..it’s a map with varying grades of color. You will see blue lines for | the rivers, lakes etc and on the far right you see some black lines. I need
| to know if there is a quick / easy way to remove all colors but the blue and
| black?

Use Select by Color Range. Before you start selecting, choose the dropper button with the "+" sign to allow you to make cumulative selections. Click on the blue and the black. The resultant mask should only have these colors selected. Inverse the mask and then erase the remainder of the image.

Norm
S
shawnews
Nov 25, 2006
thanks very much – works great 🙂

"Norm Dresner" wrote in message
"shawnews" wrote in message
| Hi…please see the image here so you’ll know what i’m talking about. | http://www.coastalconsulting.ca/map_sample.jpg
|
| OK..it’s a map with varying grades of color. You will see blue lines for
| the rivers, lakes etc and on the far right you see some black lines. I need
| to know if there is a quick / easy way to remove all colors but the blue and
| black?

Use Select by Color Range. Before you start selecting, choose the dropper button with the "+" sign to allow you to make cumulative selections.
Click on the blue and the black. The resultant mask should only have these
colors selected. Inverse the mask and then erase the remainder of the image.

Norm

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