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Background

Feb 6, 2014, 02:48
Post: #1
Background
I used GIMP yesterday and it worked great. Today It turned my entire photo white?

What could I be doing wrong?

Any help appreciated.

Mckinzy
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Feb 6, 2014, 05:23 (This post was last modified: Feb 6, 2014 05:24 by iForStyle007.)
Post: #2
RE: Background
My guess is you accidentally in "Output levels" pulled the black triangle all the way to the right.

*Instead, to bring up the brightness more gradually, adjust the white triangle (first) or grey triangle under "Input Levels"


Experiment with the other brightness tools & report back if you run into a problem (screenshot if you think it could help):

- Colors > Curves (click the line & just drag around one point, the preview is instant)
- Colors > Brightness - Contrast

For solid colors:
Colors > Hue-saturation
Colors > Colorize
-For Overall color / image darken
Colors > Levels > "Output Levels" drag white triangle slowly to the left.

(Slower but maybe more accurate)
Tools > GEGL Operations... > Brightness - Contrast
Tools > GEGL Operations... > levels (*can be cpu intesnive...)

"In order to succeed, your desire for success should be greater than fear of failure." BC
[Image: 29uocaf.png]
iFS007 tut vids on YT ~ auto color B&W landscape tut
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Feb 6, 2014, 05:26
Post: #3
RE: Background
(Feb 6, 2014 02:48)Mckinzy Wrote:  I used GIMP yesterday and it worked great. Today It turned my entire photo white?

What could I be doing wrong?

Any help appreciated.

Mckinzy
You're going to have to provide a few more details on what you were doing to get an answer on that question Wink
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Feb 6, 2014, 06:25
Post: #4
RE: Background
(Feb 6, 2014 02:48)Mckinzy Wrote:  I used GIMP yesterday and it worked great. Today It turned my entire photo white?

What could I be doing wrong?

Any help appreciated.

Mckinzy

Ok. The triangle you speak of is where?

I did set gimp up as my iphoto editor and it went downhill from there. If I have I I'm sure I have) set something up wonky, would uninstalling and reinstalling fix that?
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Feb 6, 2014, 06:45
Post: #5
RE: Background
So dang frustrating. The video I watched. Was simply, Select rectangle, image crop, select none, select Colors, Select levels, on the bottom right there are droppers...grab the white dropper and put it on the darkest part of the background and it brightens it beautifully...except for now...it does the whole picture and not the back ground.
Maybe it's my picture.
I did find the curve. Pull them all the way back to the right bottom or right top. ??





(Feb 6, 2014 05:23)iForStyle007 Wrote:  My guess is you accidentally in "Output levels" pulled the black triangle all the way to the right.

*Instead, to bring up the brightness more gradually, adjust the white triangle (first) or grey triangle under "Input Levels"


Experiment with the other brightness tools & report back if you run into a problem (screenshot if you think it could help):

- Colors > Curves (click the line & just drag around one point, the preview is instant)
- Colors > Brightness - Contrast

For solid colors:
Colors > Hue-saturation
Colors > Colorize
-For Overall color / image darken
Colors > Levels > "Output Levels" drag white triangle slowly to the left.

(Slower but maybe more accurate)
Tools > GEGL Operations... > Brightness - Contrast
Tools > GEGL Operations... > levels (*can be cpu intesnive...)


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Feb 6, 2014, 10:12 (This post was last modified: Feb 6, 2014 10:17 by iForStyle007.)
Post: #6
RE: Background
The eyedroppers in the level tools will just sample from the photo and IMO can bring up undisired results.

There are two sections in the levels tool. "Input Levels" (the top one, graph like)
"Output Levels" (The bottom one that looks like a dark to light bar)

The traingles (sliders) are directly under each (under the graph and bar)

http://blog.patdavid.net/2011/07/getting...evels.html

(Scroll down to the levels window.)
==============
For your photo
Clear up the contrast first (pull to the right some)
Colors > Brightness- contrast

then try Levels "Input Levels" or curves.

Mckinz Wrote:I did find the curve. Pull them all the way back to the right bottom or right top. ??

Its a matter of preference, drag the curves window to the side so you can see the preview of it on the canvas as you adjust it. It will make it lighter or darker depending on where you drag it.
What looks good to you, drag it around if you can find a good setting.
If you click-add, you can add another point for a more complex curve. To delete a point, drag it to the border of the graph & let go.

Or

From the original photo (the one you attached)
Try
Colors > Auto > White Balance
-then if its too harsh, adjust levels "Input" or curves.
In curves...
Pull it to the left some

If you want to try the Auto Color enchance, duplicate your layer first*

Then
Colors > Auto > Color Enhance...
Then use the layer opacity near the top of the layers window to control the strength of the colors.
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Feb 7, 2014, 03:09
Post: #7
RE: Background
THANK You all . Really helpful answers!
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