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Peligroso
05-27-2007, 10:21 PM
I have Coral Paint Shop Pro X and would like to know how to convert an image to B&W but retain a certain element of the photo in colour?

Eg: A picture of a rose, where everything except the petals (which remain red) is B&W. ;)

toriaj
05-28-2007, 02:34 AM
You could select the part that you want to stay in color, invert selection, and go to Adjust, Color, Channel Mixer to convert to black and white (make sure Monochrome is checked.)

I'm sure there's also a way to do it with Layers, but I haven't really figured Layers out yet.

FWIW, usually Paint Shop techniques are roughly the same as Photoshop.

XOO
05-28-2007, 05:04 PM
Using Elements - I know you have PSP but should work about the same.
Make duplicate Layer (why? Because the Layers also can be saved if wish to rework).
Convert Layer to B&W. Using a Selection tool select the flower.
Then, still working on the Layer, select the Eraser tool and erase the flower. Your original background Layer will show through, and, being Selected you won't go outside the Selection lines.
You can then save this in PSP or Elements format and have both Layers in case you want to alter somewhat.
You can skip the Layer steps by just selecting the flower, click on Selection, Invert. Now the flower will not be selected and you should be able to make the now Selected background area B&W. Of course, this won't save Layers as there will only be your Background Layer being worked on.
This flower was done using the first routine using Layers...
Bill
http://myweb.cableone.net/wsumrall/IMG_5810_2.jpg

Peligroso
05-28-2007, 10:02 PM
Thanks guys, i went with the 1st option - baby steps...:o

Next question, how can I perfectly select an image? My free hand selection is getting a little shaky in my old age.

XOO
05-29-2007, 05:59 AM
Thanks guys, i went with the 1st option - baby steps...:o

Next question, how can I perfectly select an image? My free hand selection is getting a little shaky in my old age.
--
Yes, that does present a challenge. But it will depend on what your software program does for you. I have found, of my four software programs, that "Adobe Photoshop Elements 5" is the best so far in making an automatic selection. In the flower shot presented above, I did not have to mouse (freehand selection) over anything. Just choose the "Magic Selector Brush Tool", drag a line anywhere within the flower, then drag a line anywhere outside the flower, then Click, and it came out perfectly.
Good luck,
Bill

Peligroso
05-29-2007, 08:27 AM
Thanks for the tips.... here's the 1st attempt. Those edges need work, I know. :D

XOO
05-29-2007, 08:44 AM
Thanks for the tips.... here's the 1st attempt. Those edges need work, I know. :D
Yep. You got the idea.
Enjoy!
Bill

XOO
05-29-2007, 09:54 AM
A quick example of using Elements for Selections...
Start with flower, make Layer, get rid of color. Then using Magic Selection Tool paint over the flower a little:
http://myweb.cableone.net/wsumrall/Ex_1.jpg

Continuing by painting a Selection over area you will not work on. Note that part of the stem and a leaf had been selected. I did not want them so painted the line over them as well:
http://myweb.cableone.net/wsumrall/Ex_2.jpg

Then using Eraser Tool painted over the flower. Note that I'm not worried about staying within the flower as the Selection of only the flower takes care of this. And the last frame shows completion. There may be other programs which are this easy for selecting areas but I don't have one of'em...
http://myweb.cableone.net/wsumrall/Ex_3.jpg

barb1686
06-04-2007, 08:14 PM
I use Photoshop so I apologize if my method is completely off.

My preference is to create a new layer > fill it with black > change the layer to "Color" mode (vs. Normal mode) > Then go back to the layer with the picture and select the part you want to keep colored > then go to the black layer and hit delete button which will delete part of the black layer.

If you don't want the original color then you would want to keep the part selected, but either use color mode or color balance (I prefer color mode). Keeping the color in normal mode makes it unrealistic. You'll also want to play with opacity.

I know that probably sounds confusing, I've never tried to explain it, but I prefer it over the eraser by far. It's all in preference. You can do one thing several different ways. Oh, and I don't use the freehand lasso, I use the polygonal lasso. I'm all over the place with the freehand, where I have more control with the polygonal.

Also, I'm no professional, but one of my loves are graphic design.

I made a quick (and I do mean quick) little composition of what I do, however, I should've picked a different picture:

http://img505.imageshack.us/img505/635/colortutorialei3.jpg