Photoshop :: Auto Levels/contrast/color
May 31, 2006
whenever [on any photo] i apply auto levels or auto contrast or auto color from the image>adjustments tab, the entire photo will completely white out as if i had added a new white layer over my active layer (which i am not doing). however, it only does this in 'auto' changes. so if i were to manually adjust my levels or my contrast or color, the 'white-out' effect wouldn't occur.
i really need this feature. i have already uninstalled/reinstalled photoshop cs2 and that didn't seem to fix the problem.
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Sep 11, 2006
I have over 300 photos that all need an auto levels, auto colour and auto contrast.
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Jul 8, 2013
I was using these tool on a lot of images, because they often seemed to vastly improve them, making the colors pop on otherwise somewhat dull ones, and getting rid of unwanted color casts..
Later though I noticed that it is often at the cost of burning out hightlights in some areas beyond salvation.I also find shadow /highlight sometimes does this also.
Then I tried to protect some small areas with a mask before proceeding, but it seems that I can't find information on just painting a mask, but only videos with much more complex adjustment such as the Russel Crow or Lynda ones with maintaing hair detail while superimposing images, which is way beyond what I need in these cases.
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If I try the wand to select and inverse I get unnatural looking divisions. Is it a matter of feathering to the right extent?Â
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Jun 22, 2009
I entered the following key sequence: Adjustments Panel | Levels | Alt-Click Auto | Find Dark & Light Colors | Snap Neutral Midtones | Midtones After keying in this sequence and making adjustments to my photo, I inadvertently hit one too many OKs as I was exiting and PS changed my defaults. They now read: H: 55, S:0, B: 0, R: 128, G: 128 and B: 128. How can I reset these values to their default settings?
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May 18, 2009
I have photoshop cs4 and I cannot find the Auto smart fix, auto levels, and auto contrast nor the adjustment for each that I had with photoshop elements.
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Apr 8, 2008
I try to apply Levels & or Brightness & Contrast settings to an image, it always seems to revert back to the way it was. The filters won't do anything it seems. I have Adobe Photoshop CS2. At home it did the same thing and I re-installed Photoshop only to find out it still did not work.
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Mar 15, 2009
basically what is happening i am importing line drawings that i have scanned in. i am opening the TIF file then changing it to a PSD or JPG (i have tried with both) changed the mode to RGB and 8 bit
i then try to adjust the levels of the image to make the drawn lines i scanned in stand out more. the preview shows the lines getting darker but when i click "OK" the image just doesn't change and the lines stay faint. the same happens when i try to use just the simple "adjust brightness contrast" option aswell. is there something i can do? i cant seem to figure it out!
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Mar 8, 2011
looking at the image plane and the 2 inputs I used - diffuse / opacity (alpha channel), what parameters are the best way to adjust the image plane brightness / contrast / levels (photoshop style)?
That’s what I like about these forums. A great way to get straight to the point and learn stuff fast.
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Sep 18, 2008
I want to 'auto-contrast' the images
2. how does this function performs? I mean what does photoshop do in the image? also, can I set parameters for this function? and adjust it to my needs?
3. if I do this functions many times to a file, it will change it every time?
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Nov 6, 2004
My "auto contrast" keyboard shortcut is not working for some odd reason. "Alt+Shift+Ctrl+L"
If I go manually to Image>adjustments>Auto Contrast it works.
I'm on CS, XP, Dell.
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Apr 20, 2013
I'm using PE10, and usually start with the "Quick Edit" tab to do a "Smart Fix" where I can select a desirable fix. Sometimes I additionally do Shadow adjustments and/or Highlight adjustments, but not much else. Then go to "Full" edits.
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- "Enhance - Auto Contrast" does tonal corrections as I understand. However I usually see no difference after doing this. Is that because when I did the Smart Fix, it is essentially doing the Auto Contrast as one of its adjustments? If so, is it just a waste of time for me to do the Auto Contrast if I have previously done a Smart Fix?
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- As the last step, I usually use "Enhance - Unsharp Mask" on my photos with Amount = 70, Radius = 2.0, and Threshold = 0. Are those reasonable numbers? I understand that beginners tend to over-sharpen their photos. I've played around with various values, and these numbers seem to have worked for me, but would just like other opinions since I don't have that professional eye as to what is a great photo. I make sure that I zoom in to print size or more when looking at the results of sharpening.
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Apr 15, 2005
I quite often need to process digital photo's on CD ROM. By which I mean I am asked to duplicate CDs with sometimes hundreds of pics on. In doing so I notice that the original pictures are invariably poor colour and brightness. When I apply an Image Adjust Auto levels function the picture is wonderfully transformed as to how it should look. If I spend time on each individual photo it takes ages to do and no longer is cost effective.
I like to keep the client happy and so, is there a way I can create a 'droplet' or 'batch' or indeed anything that will allow me to apply Auto Levels or Auto Contrast to say, 200 images at a time? I am using Photoshop 6.1 at present.
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Oct 16, 2012
what is keyboard sequence for AUTO in Image->Adjustments->Levels?
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(there is an underbar below the A in the dialog box).
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Jun 11, 2012
I have noticed that using "Stretch Contrast" gives a much more contrasty image than using the "White Balance" option. Isn't it supposed to be the other way round based on the description?
I'm using the GIMP 2.8.0 for Windows.
Also "Stretch Contrast" is very close to "Normalize" and "Normalize" does seem to shift color in exactly the same way as the "Stretch Contrast" option, although based on the description, it shouldn't.
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Mar 16, 2014
I have to process about close to 400 pictures every weekend which takes a lot of time when doing levels and everything on every individual picture.
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I need to create a preset that will do just that on 400 pictures but will make adjustments based on each individual picture's needs. I have tried to work on 1 picture while have the rest selected and Auto Sync selected. But what it does then is to apply the same values on all selected pictures and not "auto" for every individual picture.
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Nov 8, 2012
I have a photo of a painting that was taken with Kodak color checker patches on one corner. It looks like I need to adjust the colors in Photoshop.
I want to use the color checker as a reference to correct the overall image color and contrast. However, I don't know how to use it as I have never worked with color checker patches before.
how to color correct the image on photoshop?
I am attaching a cropped sample image. The original image is in RGB. The colors on the Kodak patch as follows: Blue, Cyan, Gree, Yellow, Red, Magenta, White, 3/Color, Black.
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Aug 15, 2012
What is the effect or process to, for example, ensure that normally washed out bright background on, say, a sunny beach, has same depth and contrast as the darker subject in the foreground? It is an unnatural state since your eye and most cameras will adjust to one extreme or the other.
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Jul 14, 2009
Hi I placed some advertisments into a black-and-white (greyscale) newspaper. The ads were previously scanned images and I received them as high-resolution .JPG's. I don't have access to the original files. When they printed, some of the ads were not as vivid as I wanted. I opened them up in Photoshop and found out that the blacks are not 100% black. Some were 90%, some as low as 40%. They looked fine on my monitor and on the laser printer proofs, but on newsprint they were not dark enough. I want to increase the blacks to 100%. I'm a Photoshop newbie, so the only solution I can come up with is to open each of these ads and use the curves tool to manually pull all of the blacks up to 100% while leaving the white part of the spectrum alone. I'm not sure I'm using the curves tool correctly. Not to belabor the point, but here some screen shots of before and after. BEFORE: AFTER:If you look carefully, you can see the curves. Bassically I pulled up all of the curve to 100 percent black and just left the leftmost point where it is(which I assume is the white part of the spectrum). Is this the best approach for doing what I want to do? Thanks.
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Jun 5, 2012
When I export an image from LR 4.1 for editing in PS CS6, I notice a distinct loss of contrast and possibly saturation. Overall, the image looks duller and flatter. My working space in both apps is ProPhoto RGB. I use a custom profile generated by a hardware calibrator.
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The screenshot below is of the same image rendered in both programs.
And here are my PS color settings:
FWIW, the image generated by Lightroom is rendered identically by Preview.
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Jul 22, 2013
I've been struggling the whole day to change the color of the black crack in the attached picture to red (to match my other samples) whilst fading the crack edging (paint overrun). The best I could get was to manually dodge tool the cracks to lessen the excess paint outside of the cracks but then the dodging lessens the contrast of the crack crevice too. How to (1) locally contrast the cracks from the paint around its edges and (2) change the color of the crack from black.
I've tried playing with overlays whilst adjusting the color modes for the cracks, but I've not met with much success and I'm not sure if its my lack of knowledge of these features or if its just the wrong approach altogether. PS. I'm using CS2 (its what the office has...)
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Dec 28, 2004
To me, an easy and non-subjective way to make an image color-neutral is through Levels.
I leave the RGB channel untouched and use strictly the separate color channels (ctrl 1, 2 and 3), adjusting the black and the white sliders so that the blanco parts (non-information) on the edges of the histogram are excluded.
I was wondering if there exists a shortcut for this, since it is a verifyable action based on concrete readings. When scanning a large amount of images, it seems unnecessarily exhausting to repeat this action time and again.
The Auto Levels or Auto Colors commands don't work subtle enough, because they usually discard the outer parts of the histogram.
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Nov 13, 2013
What is the keyboard shortcut for remove color cast and for brightness/contrast?
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May 22, 2012
Gradient and color banding are very apparent and exaggerated until I zoom in to 66.6%. It even hangs for a split second as if it is solving a new render at a higher quality. This is getting frustrating as I've found myself manually trying to clean up issues that actually aren't there when I zoom in close enough. These issues are expecially obvious when working with skin using several degrunge techniques and dodge and burn on a softlight layer. It does not seem to matter what display I use.
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If I commit all adjustments to a new layer the problem goes away. I'm working on a Eurocom Panther 3 running Windows 7 64 Ultimate. I have a hex core Intel processor and 2 Nvidia 580m in SLI, though I am aware that is not used in Photoshop.
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Jun 14, 2013
Whenever I edited the attribute of a block, just when I tried to fill in a new value in the "Value" column after thosed named "Tag", "Prompt", it was always a pain for me to find out on which row the new value was maintained, because the color contrast between the rows was too poor. See attached picture for more details.
Eager to know if there is a way to change the backgroud color in order to have a better contrast?
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Oct 17, 2012
When I try creating a color balance adjustment layer is it opening a levels adjustment layer. I'm using the New Adjustment Layer button at the bottom of the Layers panel. Is this a bug with CS6? How can I fix the problem?
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May 19, 2013
I cannot get a color balance adjustment layer to come up. Every time I do photoshop creates a levels layer. Selecting levels makes a levels layer. All of the other adjustment layers seem to be working normally.
How do I fix this? I have a deadline and no time to be reinstalling photoshop.
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Oct 4, 2013
What I'd like to do is adjust the color and brightness/contrast of many layers of an animation. Now, for a still image with many layers I know you can generally add a partially transparent layer over the whole thing, however, since it's an animated .gif I have to do the same thing to each individual layer. I could probably go through and do it by hand and just get it over with. But, I'm curious if there's a feature for this, or is there a plugin that can repeat actions for multiple layers?
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Jul 23, 2011
I take a lot of underwater pictures usually quite badly . I am looking for adjusting the color levels.
I am guessing I have to create layers to adjust them properly as just fiddling with the Red on the main image isn't really giving me great results.
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Jan 27, 2014
I'm in the process of making a command map for the free video game Wolfenstein Enemy Territory.
The games allows to generate a TGA file called Tracemap, which is used by the game to detect which places are outside or inside, for precipitations and artillery. It is commonly used as a base to make command maps, such as:
Other examples:
[URL].......
To obtain a comparable result, I have decomposed the making in 4 steps (4 layers):
- The terrain (background);
- The buildings (in shade of grey);
- The roads (a tool drawing white lines bordered with black and doing the junctions automatically would be neat, if it ever exists...?);
- The "foldings" (that's the Reverso translation, I think it can be guessed from the pic).
So, I exported the terrain in a separated map, compiled it, generated a Tracemap, and I have it in GIMP now. I would like GIMP to detect and do some lines between the different levels like Paint Shop Pro seems to do:
[URL]........
This way, I can draw the height lines accurately, and then color (I already made the palette with required colors); Does this exist in GIMP? Tried few filters but never came close to something like in the Warchest forums.
If it isn't possible I will do it manually ^^'
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Apr 16, 2013
When I first started using CS6 I would edit my photos and when I used "save as" to save my photos then open them in a different photo viewer they would have lost a lot of color and contrast. When I reopened them in CS6 they still had no color. This is all occured on my PC. I used to use PSE 7 (on my PC) and the "save as" function to save them and they turned out fine. I recently got an iMac and when saved on there the same way and reopened in a different viewer they'd have the correct color,
but when opened on my PC the color would be lost again. Also tried opening the images I saved on my PC in CS6 on the iMac and they still had no colo/contrast. So that would mean it's not a monitor calibration thing. I'm trying to figure out how to save my photos so they have the best quality they can have for printing and also the correct color for clients to view on their computers.
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PS: I did use the "save for web" option on my PC and the photos have the correct color that way! But those aren't the proper size and stuff for printing. Also I'm very new to iMac and full photoshop so I'm not sure what sizes/pixels/color modes/etc are normal or what photos are supposed to be.
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Oct 21, 2011
I like drawing in black and white, but whenever it comes to coloring the drawings, I always tend to just leave it, because it bores me, big time. Any way to "auto" color drawings? Is there some sort of action or plugin that can somehow figure out the black linework and fill in the blanks?
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