Changing image to different color

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

GIMP Version: 2.8.10
Operating System: Windows
OS Version: 7
GIMP Experience: Basic Level

I am trying to change the image to a different color but what happens is it gets a bit pixelated because of the outer pixels as shown in the attachment.

I am not sure how to make it look smooth.

I am sure it could be a simple job for more advanced users.

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Can you post your xcf so we can look at what you did so far? That way we can see the layer or layers.

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

That is the original .png

There is no .xcf as I am trying to edit the image and change the color. I've realised after removing the lines and using the fuzzy select tool to select the heart, If I then apply the color I want with a low opacity it looks OK (not perfect but might do)

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Are you not editing the image with Gimp?

rich2005 · **Joined:** Mar 04, 2011 **Posts:** 2615

lock the alpha channel before painting/filling to preserve the semi transparent pixels.

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

I tried one here.

SysTemX · **Joined:** Dec 08, 2013 **Posts:** 1088

Have you tried using color>map>gradient_map

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

SysTemX wrote:

Have you tried using color>map>gradient_map

That works quite well, Never knew about it!

Getting some good results with that!

GnuTux · **Posted:** Wed Aug 06, 2014 8:36 am **(#9)**

What about using Colors/Colorize or Colors/Colorify?

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

That is what I used for mine.

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

The attached file I tried doing the map gradient on this and it comes out pixelated a bit. Is there another option? I tried to make it black with a transparent background.

SysTemX · **Joined:** Dec 08, 2013 **Posts:** 1088

Like this?
Something happened in the upload, its spotty. :roll:

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

I tried it by selecting by color then painting in black then went color to alpha and got rid of the white bg.

SysTemX · **Joined:** Dec 08, 2013 **Posts:** 1088

Thats what I did too, it uploaded with freckles.

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

molly wrote:

I tried it by selecting by color then painting in black then went color to alpha and got rid of the white bg.

[ Image ]

I previously got SystemX's result but that one seems a lot closer!

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

SysTemX wrote:

Thats what I did too, it uploaded with freckles.

This was the original image might just be a poor image.

SysTemX · **Joined:** Dec 08, 2013 **Posts:** 1088

SELECT the background color.
Invert with ctrl I
make the fore ground color (The sector in your toolbox) Black.
click on the black box and drag it to the NEW LAYER icon . Its at the bottom left of the layers dialog.
oh and when done, SHIFT+LEFTclick on the new layer.

sallyanne · **Posted:** Tue Aug 12, 2014 6:06 am **(#18)**

I tried, selecting colour>to path>stroking path with same colour as selected area but it was not a smooth stroke....very uneven.

SysTemX · **Joined:** Dec 08, 2013 **Posts:** 1088

To smooth the edges, try
select the background
SELECT>SHRINK by 3
CTRL+I
EDIT>STROKE-SELECTION
choose stroke with paint tool and select the smudge tool.

sharpCode · **Joined:** Aug 06, 2014 **Posts:** 9

SysTemX wrote:

To smooth the edges, try
select the background
SELECT>SHRINK by 3
CTRL+I
EDIT>STROKE-SELECTION
choose stroke with paint tool and select the smudge tool.

Would you advise doing that on Molly's result? OR doing it before anything else?