Advanced Masking/Selection Capabilities
How to select a part of an image for masking based on either color saturation or hue or a certain color (not RGB value but rather a color group), so that I can transform the selection to the Alpha channel.
For example, if I have a photo of a red car on a multi-color, complex background where there are NO other red colors exist on the picture, other than the body of the car, then such selection (that I need help with) suppose to select all shades of red on the photo, which is only the body of the car.
I guess you know what I'm trying to do, right? I need to create a PNG file where certain part of an image (like a body of that car) would be gray-scale alpha channel, so that by placing the image file on colored background - that would simply paint the car into another color.
See an example on this page: http://www.netchain.com/test/Png.asp
Thank you very much for such a thorough respond. Since it seems like you know your way around Photoshop, I thought I would ask you another question, if you don't mind of course.
The reason I was looking for the answer for my previous question, was because I wanted to transform that
selection into gray-scale alpha channel, so that if I save the file as PNG maintaining gray-scale transparency
in the alpha-channel, and if I place that PNG file on colored background on the web, then the part of the
image in alpha-channel suppose to get colored accordingly to the background color.
I was wondering if you can help me with that, since I'm a bit confused about the Alpha-channel. I think I can
apply the alpha-channel to the selection, but it doesn't get saved in PNG file, probably because I am missing
something
You can see the example of the image that I want to make (made by someone else) on this test page:
http://netchain.com/test/Png.asp
As you can see on that page, the sweater on the picture has alpha-channel, so it assumes the color of the
background of each block.
Thank you very much in advance, and God bless you.
Sana
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> There seems to have a bug in the final release of DW CS4
that wasn't there in
> the Beta version: when we create an html Spry dataset
and we check the
> "Advanced data selection" option, DW automatically adds
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> column1, and so on. This row doesn't do anything good
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David Powers, Adobe Community Expert
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Message was edited by: nachdenki -
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Hi there,
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Click the layer i've created that I intend to use as a mask
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JonnoPerfect! Thanks very much R_Kelly. That does exactly what I was hoping to do.
Cheers
Jonno
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