13 replies to this topic

[donkeymusic]

Hello, i have an image which is on a white background and what i would like to do is remove the background so that i have just the image, and then i can place this image ontop of over images, can anyone help? thanks

[Davey]

look in the tutorials for cropping - basically will tell u how to cut a pic out to exclude the background and 1 or 2 might even say how to best add em to other pics, or give pointers

[xis]

http://www.pixel2lif...e+extraction/1/

[donkeymusic]

the attached image is what i want to remove the white from just so i have the logo, i have tried with magic wand but still seem to have the inner sections white.

thanks

Attached Files

•  Mercedes_logo.gif   9.76K   99 downloads

[Scythar]

Sice its all white, take the magic wand tool and change the options in the optiontoolbar: try tolerance of 0 first, since you can always fine tune later, uncheck feather, wait...
I'll try it first...

EDIT:
1. copy picture (ctrl+c)
2. choose new file in photoshop and accept the dimensions hes giving you, he knows you want to insert the copied picture, so he already took the right dimensions
3. ctrl+v
4. make sure your rulers are visible (if not, press ctrl+r)
5. drag a horizontal and a vertical guide line (as precise as you can --> zoom in first at 200 - 300%) at the borders of the round logo
6. choose circular selection tool and drag from one corner to the other of the guidelines you just drew
7. choose select > contract and type 1 pixel
8. choose select > feather and type (you guessed it) 1 pixel
9. INVERT selection (plz dont forget)
10. press delete

voila first part done. Now...

11. select the magic want tool and make sure in option toolbar to unchect "continous", leave antialiase on (it was better i tried it)
12. select right part thats still white and delete
13. do the same with the lower part.

Now only thing thats left is the most difficult and timeconsuming:
14a. magic wand tool same as previous --> click left white part
the selection is good to start with, but there is far too much selected
14b. zoom in (scroll mouse and move page by pressing spacebar and dragging with mouse)
14c. lasso selection tool (yep i am afraid you'll need to manually change selection)
while selecting: press shift to add to selection and alt for deleting part of selection
in options toolbar: feather = 0 and anti alias on.

The more you zoom in --> the more time consuming, but the more exact it will be

After doing all that, try to delete, and undo and try to do the same after feathering for 1 pixel --> just choose whats the best.

EDIT2:
since logo is a straight line --> in the last part you could use the polygone selection tool instead of lasso selection.
sry bout that.

Edited by Scythar, 23 September 2006 - 04:49 AM.

[refugee7]

Can't we use the Masking technique aswell for this?

[greg]

I do cropping every day, because it's my job. There are many methods I use, depending on the image. For this one, I'd recommend using my channel method:

Choose in which there is the greatest contrast between the background and the picture. Duplicate that channel, and turn all other channels off. Using Levels, Brightness + Contrast and the burn and dodge tools (alternating between "Highlights," "Midtones" and "Shadows" modes), increase the contrast until it is almost completely black and white.

Now, with the Wand Tool, select the white area background areas, switch back to your layer, and hit "delete."

[Dance]

Well, problem is there are white highlights bordering to the wite background.. But as its a circle and it have a well defined midpoint if go for the circular marque then a subtract circular marque and finaly a add poly lasso for the inner cross.

Edited by Dance, 23 September 2006 - 08:07 PM.

[greg]

(Or just right-click and choose "select inverse" instead of doing a second circle.)

[donkeymusic]

thanks for all help

[N-sane Noob]

Make a new Image and instead of white choose TRANSPARENT...

Open your Mercedes sign and click with he magic tool on the white background the go select-> inverse. Then just drag the selected area to the transparent image you made before...And Viola !!!

[donkeymusic]

:: N-SanE NooB ::, on Oct 29 2006, 07:44 PM, said:

Make a new Image and instead of white choose TRANSPARENT...

Open your Mercedes sign and click with he magic tool on the white background the go select-> inverse. Then just drag the selected area to the transparent image you made before...And Viola !!!

that doesnt work that way as there is white on the image

[N-sane Noob]

donkeymusic, on Oct 29 2006, 02:50 PM, said:

:: N-SanE NooB ::, on Oct 29 2006, 07:44 PM, said:

Make a new Image and instead of white choose TRANSPARENT...

Open your Mercedes sign and click with he magic tool on the white background the go select-> inverse. Then just drag the selected area to the transparent image you made before...And Viola !!!

that doesnt work that way as there is white on the image

Then just use the eliptical tool and the marquee tool and make the selection.

[donkeymusic]

i had managed to do it thank