brightness Questions

3

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I have a simple question, but I wasn't able to find an answer to this. Note, that I'm almost a complete beginner. So I have an app (it's not mine, but I'm contributing to it), and in there is writ...
Encumbrance asked 25/1, 2020 at 13:35

11

How do I programmatically change the monitor brightness on Linux? I'm using SLES 11.
Quesnay asked 8/7, 2011 at 14:22

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What is an easy way to adjust brightness, contrast and gamma of an image in .NET?
Handfast asked 14/3, 2013 at 11:57

9

I have two folders in my /sys/class/backlight: 1> acpi_video0 2> intel_backlight The intel_backlight is useless because I can use the following command to adjust brightness in acpi_video0 (...
Affection asked 26/5, 2014 at 8:54

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I want to change the system brightness programmatically. For that purpose I am using this code: WindowManager.LayoutParams lp = window.getAttributes(); lp.screenBrightness = (255); window.setAttri...
Hirsch asked 19/8, 2013 at 11:23

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I am new to image processing. I program in Python3 and uses the OpenCV image processing library.I want to adjust the following attributes. Brightness Contrast Vibrance Hue Saturation Lightness ...
Dittmer asked 22/5, 2018 at 18:31

6

I want to change the brightness of a DIV's background, without affected the other contents in a div. When I apply a hover brightness filter on the div, other elements in it are also affected. Whic...
Fisken asked 4/11, 2013 at 17:20

3

How do you get the preferred screen brightness in Android? To change the screen brightness I use WindowManager.LayoutParams.screenBrightness. According to the documentation: This can be used to...
Polyneuritis asked 28/12, 2010 at 9:23

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I found some info on the web: echo 1 /sys/devices/platform/flashlight.0/leds/flashlight/brightness But on my Nexus 7 (flashed an AOSP), I couldn't find that directory. Any idea about which file ...
Koski asked 10/6, 2013 at 14:23

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I am wondering if it is possible to change the brightness of: body{ background-image:url(); } Using HTML/CSS. The reason I would like to change it, is because I just spent a rather long time ...
Laxation asked 26/1, 2014 at 12:25

1

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I'm trying to change the brightness of a TabView in SwiftUI, but whenever the brightness toggles, the sub-views change their vertical position. This is highly mysterious to me, as it seems strange ...
Janicejanicki asked 10/10, 2021 at 17:58

6

I've noticed that the brightness of computer monitors drastically varies between computers. As such, this changes the look of web pages greatly. Is there a way to use JavaScript to automatically ...
Bennion asked 21/5, 2010 at 15:2

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Using pure CSS how can I lighten an RGB like: rgb(255, 0, 0) SASS's lighten mixin works well: lighten(rgb(255, 0, 0), 25%) however it doesn't support CSS variables like this: lighten(var(--redColor...
Billybillycock asked 21/3, 2021 at 21:35

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I have a colour value in JS as a string #ff0000 How would I go about programatically calculating a brighter/lighter version of this colour, for example #ff4848, and be able to calculate the brig...
Ilke asked 22/6, 2011 at 17:26

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I’m currently working on a feature of my app, which recognizes faces in a camera stream. I’m reading landmark features like the mouth etc. Everything works fine when light conditions are sufficient...
Slipper asked 5/3, 2020 at 21:57

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I've seen that I can detect changes in screen brightness by registering as an observer for UIScreenBrightnessDidChangeNotification - (void)viewDidLoad { [super viewDidLoad]; [[NSNotificationCent...
Metastasize asked 15/1, 2014 at 11:17

3

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Does anyone know how to get the user's current screen brightness or temporarily change the brightness just for one view? When the user launches a specific view the screen dims to the lowest bright...
Heidy asked 20/11, 2016 at 23:12

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My Question: I want to be able to change the brightness of a resource image and have three instances of it as ImageIcons. One at 50% brightness (so darker), another at 75% brightness (a little brig...
Challenging asked 19/10, 2012 at 19:2

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I select a text and change its color and it tells me this Range("A7").Select With Selection.Font .ThemeColor = xlThemeColorAccent2 .TintAndShade = -1 End With But when I run this code the Tint...
Alimentation asked 7/1, 2014 at 3:34

4

How to change Mac display brightness from cocoa application?
Fitted asked 13/7, 2010 at 17:30

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I have a script which uses Google Maps API to download a sequence of equal-sized square satellite images and generates a PDF. The images need to be rotated beforehand, and I already do so using PIL...

2

Problem is, my reading app has a button that puts it into dark theme mode. The brightness gets reduced by 10%. When the user returns to the normal mode, it is set back to the remembered brightness....
Delrio asked 6/2, 2013 at 0:20

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Is there an easy way to change this? I've just upgraded from ipython notebook v0.12 to 1.1 and it doesn't seem too bad so far but these colours are killing me. I've been working for an hour now and...
Wormy asked 21/2, 2014 at 4:43

5

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I was searching how to change the brightness of the screen programmatically and I found this it is very good solution and it works nice, but it works only while my app is active. After my applicati...
Peewee asked 4/10, 2011 at 11:1

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With the latest stable build of Windows 10 (10586), the color of the title of Win32 windows changes respecting the color of the window chrome. For example, if the window color is darker, the title...
Nonobservance asked 2/3, 2016 at 3:56

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