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Why? But more importantly... how to fix it

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23 Jun 2011 12:56PM
I've got an image that however I resize it PS seems to add, or change the colour of approx 1 pix of the edges.

This is a crop of the original image,1-image-2.jpg

and this is what happens if I resize it (smaller) image-1.jpg

I've tried all sorts of options but nothing seems to work, anyone know how I can remedy this please?

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FanPilot 6 46 2 United Kingdom
23 Jun 2011 1:05PM
I'm not sure, but is there a setting to switch off anti-aliasing when re-sizing? I am just starting out in photoshop so can't help any more than that.
JackAllTog Plus
8 4.8k 58 United Kingdom
23 Jun 2011 1:40PM
On PS elements i just choose the "Bicubic Sharper (best for reduction)" option. But i don't think this will help.

If you have a pic 10 pixels wide and want to reduce it to 5 pixels wide, then every colour transition between 2 pixels will need to be crammed into one so it gonna averate the 2 pixels into 1, B&W give grey.

If there is an option that won't average the pixels but will just choose one or the other then you will get what you want. Sorry i don't know what this is called.
User_Removed 15 2.8k 11 United Kingdom
23 Jun 2011 1:41PM
Arrgghh I know what that is.
PM me and I'll explain.
JackAllTog Plus
8 4.8k 58 United Kingdom
23 Jun 2011 1:42PM
stevenb Plus
14 260 6 England
23 Jun 2011 1:50PM
Hello K
Forgave me if I've misundertood you. Is this what you mean
To put a 1pixel line around the edge
In Photoshop Control P that will give you the marching ants around the edge
From the Edit drop down select stroke ,set to 1 pixel, you have trhee choices, inside, centre or outside, Pick INSIDE.
Select the color you require then press OK.
That will give you an equal 1 pixel boarder

Hope this is what your asking

23 Jun 2011 2:03PM

Quote:Is this what you mean

Hi Bill, no, sorry maybe I didnt explain myself properly. The first image is larger than I need for the space I want to put it in, but when I resize PS puts about 1 pix around the edge of the black shapes and thats not what I want. I want to resize but keep the shapes in tact.

Thanks Stuart, I've tried using bicubic sharper but that doesnt work.

Laurel thanks but cant you put your answer here, it might help others?
User_Removed 15 2.8k 11 United Kingdom
23 Jun 2011 2:11PM
I could but I'd rather not.
Never mind. Someone else will help you I'm sure.
cattyal Plus
12 8.2k 6 England
23 Jun 2011 2:18PM
In Paint Shop Pro (well the old version I've got on the pc at work) - there is an option in the resize dialog of 'pixel resize'. I've just tried that on a similar image and it works a treat - nice clean edges. Is there something similar in PS? I don't have PS here to experiment on and besides I'm supposed to be working Smile
23 Jun 2011 2:24PM
Thanks Alison, you've put me on the right track... back later Grin
cattyal Plus
12 8.2k 6 England
23 Jun 2011 2:26PM
Oh good - maybe I've actually been useful for once Smile
jken 11 1.7k 1 United Kingdom
23 Jun 2011 3:05PM
Think it's to do with Anti Alias

The above is a little tutorial that should help.
Big Bri 16 16.2k United Kingdom
23 Jun 2011 3:23PM

Quote:I could but I'd rather not.


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