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Questions tagged [contrast]

51 questions
34
votes
8 answers

Is there a way to increase the contrast of a PDF that was created by scanning a photocopy in B-W

I've tried opening the Accessibility menu and choosing black background with green font, but it seems this does not work if the document was originally scanned in Black/White mode. Is there any other way to enhance the PDF's contrast?
mrblint
  • 641
30
votes
2 answers

Change color of scrollbar in windows 10

I was wondering if it is possible to change the color of the scrollbar in windows 10. At the moment the color difference between the slider and the background is small enough for me to have to search for it, especially when it is small. Can this be…
coolcat007
  • 453
29
votes
13 answers

Adjust PDF Contrast with Adobe Reader/Acrobat?

We get PDF's from our professor to read for homework but they're often scanned documents, is there a way to adjust the contrast of the text to make it easier to read? Edit: I've got Photoshop but is there a way to do it from a PDF reader? Edit2:…
wag2639
  • 7,244
25
votes
2 answers

Chrome Dev Tools Color Picker Contrast Ratio not showing up

According to the dev tools docs, you can view the contrast ratio of a text element in the Color Picker as of Chrome 65 - January 2018 However, sometimes the functionality appears buggy, as identified in this thread on Is "Contrast ratio" no longer…
KyleMit
  • 6,865
24
votes
6 answers

How to properly adjust monitor brightness and contrast?

This days, it seems that I either go worse with my eyes or some settings with contrast and brightness have been changed. However, I have been searching now for some tutorial on how to adjust contrast and brightness, and I have found already some, on…
Johannes
  • 341
19
votes
6 answers

Laptop screen changes contrast drastically when switching from a dark to light application

I have a ThinkPad W530 running Windows 8. When I switch from any darker application to any lighter application the contrast is off and takes a second or two to adjust back. I can very clearly notice it adjust after alt-tabbing to one or the…
user12834
  • 418
13
votes
2 answers

On Windows 11, is there a way to make the window borders visible aside from the high contrast Accessibility options?

In a sea of dark/night themed windows, I find it very difficult to find where one window ends and the other begins as the borders are nearly invisible on my large 4K monitors. In Registry Editor I have already navigated…
Brian Kessler
  • 285
11
votes
1 answer

Does raising LCD monitor contrast increase energy usage?

I've got a Dell S23340M - an LCD monitor with an LED backlight, which has built-in options to adjust the brightness & contrast. The monitor features a nifty "Energy Usage" bar that changes as you increase/decrease the brightness. When I increase the…
takanuva15
  • 265
10
votes
2 answers

Is there a way to display a real-time image histogram of all or part of what my monitor is displaying?

I am trying to adjust brightness/contrast in photo/video editing software that does not provide image histograms. What I would like is a piece of windows software that displays a real-time histogram of all or part of what my monitor is…
cxnull
  • 101
8
votes
7 answers

Can't disable dynamic contrast ratio (or auto brightness) on new gaming PC

I asked this on Reddit: https://www.reddit.com/r/techsupport/comments/718dw8/cant_disable_dynamic_contrast_ratio_or_auto/ So I got my new gaming PC a couple of days ago for Battlefield 1 and PUBG, everything else works fine but there seems to be…
SMGRushBNoStop
  • 89
7
votes
2 answers

How to change display contrast on Windows 8

In Windows 8, there is an option to the change the brightness of the display – similarly, is there a option or (maybe app) to change the contrast of the display? My laptop has no way to change the display contrast so I'm trying to do it in the OS.
Nalaka526
  • 1,624
5
votes
3 answers

FFmpeg eq filter complex: Contrast

I am playing with the eq filter in FFmpeg: https://ffmpeg.org/ffmpeg-filters.html#eq Using a command like: ffmpeg -y -loop 1 -i input.jpg -filter_complex "[0:v]eq=1:0:1:1:1:1:1:1[outv]" -map [outv] -c:v libx264 -t 3 -pix_fmt yuv420p out.mp4 # does…
Jon G
  • 307
5
votes
1 answer

Is there a way to adjust colors of a specific window?

Is there a (Windows) program or something that will allow the user to adjust the brightness/contrast/gamma of a specific window rather than the whole screen? As a use-case scenario, imagine having a web-page showing on one half of the screen, and…
Synetech
  • 69,547
4
votes
0 answers

In LibreOffice Calc, how can I change the cell selection black ring to something lighter for dark backgrounds?

In LibreOffice Calc, how can I change the cell selection black ring to something lighter so it can be easier to see for dark backgrounds? I will attach an image to show what I mean. It would be nice if it could auto-detect if a background is dark…
PJS1987
  • 307
3
votes
0 answers

How to increase contrast in a PDF file?

Possible Duplicate: Adjust PDF Contrast with Adobe Reader/Acrobat? I have a black and white pdf file of text. But the text is too faint and is difficult to read. Is there a way to increase the constrast, or make the grays more black? I have a…
a06e
  • 677
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