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Black and White images with colour parts


Robbo

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I have seen images created in Photoshop where the entire image is black and white, but a small section (example flowers) is still kept in colour.

Can someone tell me how this is done and maybe point me towards a tutorial on the topic.

I am using Photshop v7.0
 
Robbo, welcome and enjoy your stay. :)

The easy way to change image the way you want is to make a selection of the part that you would like to have in B&W and copy to a new layer (CTRL+J for PC).

For the selected part of the image go to :

Image>Adjustment>Desaturate. Done. ;)
 
Desaturate

Ijiljana,
Thats a good tip. I would have had the file in 2 image modes and worked from there. I have to say that your black and white apple looks uneatable or .. worse. ;\
Ferlin :shocked:
 
Hey Robbo, welcome to the forum :righton:
There are many ways to create that effect, Ijiljana shown you one, another easy way to do it is to :
1] duplicate your color image (Ctrl + J)
2] desaturate the copied layer (Ctrl + U)
3] With the copied layer still active, simply erase (E) the objects in the image you what to have colorized, you can vary the erase tool brushes to fit your needs.
 
You can also desaturate the entire image, then brush on color on a new layer, set to Color mode. This preserves luminosity while adding the color of your choice. If you want to show the original colors, use the History brush.
 
Ok, now, whilst i know and love certain aspects of PS, Applecider has prompted me to finally ask this question (cause i hate looking stupid, but now i just gotta know) - The history brush, i know it tells you to pick a history state to associate the brush with, but i just pick any old layer in my history that makes the history brush work the way i want (cause some don't), but i don't actually know why this makes it work - and the other thing, the painting colour back on using the history brush!! All new to me... and yes, i have looked (long ago), at the native help files, and it didn't seem to get too indepth about what this history stuff actually means (but no, i haven't bothered going so far as to look this stuff up - i mean, i kinda got it to work, and that was good enough till i was prompted to actually ask the question!)...

so, if anyone feels like enlightening this rather vaccuous bubble!!! appreciated :righton:
 
Add a 'Channel Mixer' adjustment layer (group it if you wish).
Select the 'Monochrome' option in the channel mixer and adjust the sliders until you have a result that you like.
Paint on the 'Channel Mixer''s mask with a black brush to unmask those areas that need to be unmasked.
 
Bubble, I hope I can answer your question

Once upon a time...

When you first opened an image, you have a history "state" in your History palette (at the top). You then add a brush stroke, type some text, apply a filter, etc. etc. Each of these adds to the image's history.

You set the number of history states you want PS to remember in Preferences (the default is 20). After 20 "things" you do to the image, the first "thing" disappears. So, if you're doing a lot, like most of us do, and want PS to remember a specific time in the image's history, you create a new history "state" in your history palette. No matter what else you do to the image, if you click on that state, it'll go back to whatever that was. Apply the History Brush now, and you'll get there.

If you click on one of the things in the History Palette, you'll get back to where you were when you did whatever that thing was. Same thing, apply the History Brush and you'll paint in whatever the image looked like at that point in your history's time.

If you don't click on anything in the history palette, PS assumes you want to go back to the beginning when you paint with the History Brush.

Think of the History Brush as an undo applied to a brush. (The Art History brush works exactly the same way, except it applies artistic effects while it goes back in time.)

Actually, the History and Art History brushes are way underused. You can do some cool effects with them, like apply a very distorting filter like twirl, then paint in a history to the original in the middle of it.

Hope that helps, and didn't confuse you :)

(Edited to add caution)
Caution: The history states only stay as long as you have the image opened. They disappear when you close it.
 
GfX@rt:
Add a 'Channel Mixer' adjustment layer (group it if you wish).
Select the 'Monochrome' option in the channel mixer and adjust the sliders until you have a result that you like.
Paint on the 'Channel Mixer''s mask with a black brush to unmask those areas that need to be unmasked.

Another great approach from a new member! :} I'm going to have to try that technique! Thanks for sharing GfX@rt and welcome to the forum! :)

Great explanation Julie! ;)
 

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