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Questions tagged [rgb]

Red-Green-Blue, a way of representing colors using the three primary lights.

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1 answer
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RGB light acting weird

I added 2 fans through molex connections (0.18 Amps each) and now the side panel case RGB does not automatically go on anymore when I start up my PC, even after disconnecting the new fans. The RGB is ...
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1 answer
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That means the panel is 6 bit and can simulate 8 bit with FRC?

How could I know if the monitor panel is true 8 bit or 6 bit+FRC? I ask because even though the panel is rated to be 8 bit, from graphic driver I can select 8 bit and also 6 bit color depth. This ...
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0 answers
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Working on a single in channel in GIMP

I'm using GIMP 2.10.22. I have an RGB color image, and I want to do work on one of the channels, without affecting the others. How can I copy the channel into a new image, work on it there, then copy ...
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Case fans spin slowly and RGB lighting remain on after PC shutdown when custom device plugged in

I wanted to add custom RGB lighting behind my monitor, and control it with a microcontroller. Circumnavigating the monitor required 44 LEDs from a WS2812B strip. The power requirements were ~2.65A @ ...
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1 vote
2 answers
96 views

Why is deshake background green and how do I make it black?

FFmpeg version: 4.3.2-2021-02-27-full_build-www.gyan.dev, Windows When I apply the deshake filter to a video, e.g.: ffmpeg -i input.mp4 -vf "deshake=rx=64:ry=64:edge=blank" -c:v h264_qsv ...
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1 vote
0 answers
36 views

Corsair lighting hubs are disabling my SSDs

I have a new PC build that I've been having some issues with regarding my SSDs not being recognized. Here are my PC specs for reference: Chassis: Phanteks Eclipse P360A Motherboard: Gigabyte B550 ...
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1 answer
645 views

Cooler Master Hyper 212 RGB Aura pinout/direction for ASUS motherboard

I'm trying to connect a Cooler Master Hyper 212 to an Aura connector on an ASUS motherboard. I have the pinout for the motherboard, but not the fan/heatsink. I'm not that familiar with this ...
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1 vote
0 answers
577 views

Rgb not working on MSI motherboard

Today I booted up my computer and none of the RGB is not working including the strip that is on the motherboard I do not recall doing anything that would cause this problem. The RGB strip out on the ...
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0 answers
56 views

Can RGB Fans work without them being lighted up?

i did a small research and still don't if RGB fans can work without the being lighted up. the real question is: Can i connect only the SATA POWER of the RGB controller? without connecting the MB? And,...
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3 votes
1 answer
469 views

Different RGB values in Digital Color Meter on MacOS

I'm using the MacOS app "Digital Color Meter" to get the RGB values from different websites. Now I want to use those colors in a Word document which I'll export to PDF. I want the colors to ...
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2 answers
4k views

How to find software for unknown RGB Keyboard

Got my keyboard when I bought my computer, the RGB turns on for each key when pressed but I want to customize it. Surprisingly enough there is no sticker with any company name on the keyboard so I do ...
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0 answers
153 views

Inconsistent color specs and rendered color in PDF/EPS:Why is DeviceCMYK apparently interpreted differently by different PDF viewers?

I'm trying to create a color scheme for latex/beamer/pdf that matches my university's official corporate style. (But this question is not about latex/beamer!) The material I have to work with is a PDF ...
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3 votes
2 answers
6k views

How to go about a motherboard's Addressable RGB LED limit?

I am planning a new build and wanted to add some Addressable RGB flare to my setup. However, according to the Asus product specs, the mobo may have a limit on how many addressable LED I can connect to ...
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0 votes
1 answer
9k views

How To Change The Color On A Mouse Called HEMZONE USB Wired Optical Gamestart Gaming Mouse On A School Chromebook?

If you look up this mouse you can get more information. This mouse is called HEMZONE the company is GameStart. This mouse lights up and I want to know how to change the color and if it is possible?
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0 answers
213 views

Intel RealSense Camera R200 video feed is all green

I am trying to get an Intel Realsense R200 camera working on a Windows 10 machine using Python 3.7.3 and OpenCV 4.1.0. The problem is that when I open the application the video feed is all green ...
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1 vote
0 answers
380 views

Connecting RGB LED strip to pc controller

I just bought a computer case Sharkoon pure steel rgb. It comes with 4 rgb fans that connects to a controller according to the following image: After connecting these 4 fans I still have 4 more empty ...
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0 answers
1k views

Lossless convertion of a set of png images into an H.264 mp4 video with FFmpeg for future editing

I have an animation rendered as a series of png images, and I want to convert it losslessly into an H.264 mp4 video. The images are in the RGB color space. I tried these options: ffmpeg -framerate ...
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1 vote
0 answers
387 views

Remove HyperX RGB heatspreader and put on different HyperX DIMM?

Looks like HyperX doesn't have a 2x16GB RGB module set, but they do have a 2x8GB module set in RGB (Amazon). Question: I have HyperX DDR4 modules running at 2133Mhz at 2x16GB, could I swap the heat ...
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0 votes
1 answer
6k views

How do you turn off G.SKill RGB lights on AsRock motherboard?

Before finalizing an order that would include RAM: G.Skill Trident Z RGB MB: AsRock Taichi X399 What will the options be for me to turn off RGB lights? Searching, I read mainly topics about "Asus ...
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-1 votes
1 answer
53 views

What are 10bit displays worth with all sources being saved in 8bit format [duplicate]

From what I know all images you can create with RGB are 24 bit (8 bit per channel). There are new 10 bit monitors coming into daylight these days. What is their advantage over 8 bit, if all (or ...
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0 answers
31 views

Reinstalling Windows to Make MOBO and Memory LEDs Default

I’ve been trying to reset my motherboard and memory LEDs to default using MSI’s Mystic Light software, but every time I reboot, it loads to the same config, not the default settings I applied. Will ...
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1 answer
342 views

Can linux change hardware functionality directly?

Edit: The chosen answer did not solve it for me but was the closest and maybe it could be of help to others. I have a Lenovo Y720 laptop, which has han RGB keyboard. Unfortunately, the RGB only works ...
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1 answer
68 views

Microsoft Excel cell coloring using values of other cells

I'm trying to color a cell using values of other cells, with RGB. For example : Colour cell A1 with the color R = A3, G = A5-B5, B = 23 Any way of doing that on Excel 2010?
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98 votes
11 answers
65k views

What sense does it make for "sharpness" to be adjustable on a monitor?

Modern monitors often have a "sharpness" setting. But I don't really understand how it makes sense for such a setting to exist. The software asks the monitor to display a particular pattern of 32-...
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-1 votes
1 answer
51 views

Why Does sRGB Have Superfluous Colors?

The Visible Spectrum is roughly 3 times the size of the sRGB Gamut. The sRGB Gamut can display over 16 million colors (256 x 256 x 256). Most humans can only see roughly 10 million colors. Regarding ...
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0 votes
2 answers
56 views

What is wide color and how does it differ from HDR?

I have been trying to learn about the concepts of wide color and high dynamic range and have practically drowned in a sea of marketing speak. I have limited understanding of how color works on ...
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0 votes
1 answer
518 views

Cyan,Magenta,and Yellow are displayed using 2 subpixels.Red,Green,and Blue only light one for each.How come C,M,Y don't look much brighter than R,G,B? [closed]

LCD screens have pixels that consist of 3 sub-pixels: red, green, and blue. The colors red, green, and blue are made with only one color. The colors yellow (red + green), magenta (red + blue), and ...
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3 votes
1 answer
8k views

How to generate a pure white background video with ffmpeg?

I want to create with ffmpeg a pure white video to use it as background. I mean a video that, played in a computer, you see as white. (In the examples I will pipe the output to ffplay so you don't ...
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1 answer
1k views

ViewSonic VX2453 series monitor looks pink on RGB mode

I am using two ViewSonic VX2453s for my PC. One of them is fine on RGB (which I am looking to have both monitors be on), but the other is pink when seitched from YUV to RGB mode. It resets back to YUV ...
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2 votes
0 answers
884 views

Linux amdgpu - switch pixel format (YCbCr444 from RGB 4:4:4)

Is it possible to change the pixel format in any AMD driver on linux (currently Ubuntu Mate)? I am wondering if the amdgpu/amdgpu-pro/radeonsi have this capability? I have the pc with AMD A10 Micro-...
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1 vote
1 answer
472 views

How to convert "SWOP (Coated), 20%)" CMYK TIFF to sRGB PNG and ditto CMYK JPG to sRGB JPG?

I have a TIFF image and a JPG image. http://regex.info/exif.cgi says that they both use a CMYK color space labelled as "SWOP (Coated), 20%". How do I accurately and losslessly convert the TIFF image ...
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1 answer
1k views

Merging RGB Channels in FFMPEG

I have three grayscale videos, representing the red, green, and blue channels from a video. I extracted them using the extractplanes filter, and sent them through different pipelines. Now I would ...
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2 votes
1 answer
2k views

Red and Green color channels are swapped in ffmpeg rendered video

I'm using code similiar to this to pipe OpenGL image data directly to ffmpeg. I'm using this readpixels call: qglReadPixels( 0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, 0 )...
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1 vote
2 answers
11k views

Is JPEG photo same as RGB JPG file?

All my photo's are JPEG images (e.g. IMG_1202.JPG), which say sRGB under colour representation. I want to upload photo's to iSTOCK, and they require RGB JPG files only. TIFs, PNGs and PSDs will be ...
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0 votes
3 answers
1k views

How can I reduce brightness extremely without change pixel RGB values of screen?

How can I reduce brightness extremely without change pixel RGB values of screen? I want to reduce my screen's brightness extremely (like %100 to %5). I want to satisfy this two issues together: Issue ...
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3 votes
2 answers
19k views

How to get the RGB or CMYK slider options in "more colors" for Office for Mac 2011?

I have a problem with Mac Word 2011 and the fact that the 'more colors' option only brings up the color wheel and no RGB or CMYK slider options? I have tried all weekend to remedy with a number of ...
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-2 votes
1 answer
2k views

Connect an RGB LED strip over USB [closed]

I am building a PC and wanted to do custom lighting with an RGB LED strip. I could connect an Arduino to one of the internal USB headers but decided that I wanted to try and connect the power to molex ...
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3 votes
4 answers
3k views

Converting a series of bitmap images to grey scale

I have a series of bmp image files containing RGB encoded data. I need to convert all of these images in to their greyscale equivalents. I have considered two approaches for this, both turned out to ...
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1 vote
1 answer
440 views

Wavelength and luminance about LCD monitor

Is there any standard (or product) documentation defining about the value of wavelength and luminance while sending RGB = (255, 0 ,0) to LCD monitor?
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0 votes
0 answers
606 views

ASUS PB238Q Color RGB keeps changing

Following on from my previous question. Going into the. Menu I noticed that 2 of the colors were set to 100, whilst one was set to 0 hence the yellow tint. Anyway, I set all three colours to 100, ...
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0 votes
2 answers
2k views

Why do color printers, cameras and monitors/tvs use different color models? [duplicate]

Many printers use CMY or CMYK whereas most computer monitors and TVs use RGB. Many cameras, film cameras, image and movie formats use YUV. Why don't they use the same color representation?
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58 votes
6 answers
83k views

Can a printer print white color?

I was reading about different color models, when this question hit my mind. Can the CMYK color model generate white color? Printers use CMYK color mode. What will happen if I try to print a white ...
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0 votes
1 answer
767 views

RGB Colours in Office 2011 for MAC

How do I check what are the RGB colours (numbers) for a particular shade in Office 2011 For MAC? Im working on a document in Word in Office for MAC, but when I open the document in MS Word on a PC, ...
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0 votes
2 answers
2k views

Limited RGB range due to HDMI cable?

I have a NVidia GeForce GTX 660, connected to a Samsung SyncMaster S24B350 through a HDMI cable. On my computer, I'm running both, Windows 8 and Linux Mint. I think that something might prevent my ...
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1 vote
1 answer
148 views

How are pixels actually shown on display [closed]

I spend a lot of time looking at raw-video in YCbCr-format. Started thinking about what is really shown on the display and how the pixels end up there. No display can handle YCbCr-data so I guess ...
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2 votes
0 answers
923 views

RGB to CMYK in Gimp, what i'm doing wrong?

I'm trying to convert image from RGB to CMYK in Gimp, tried to search for answers, but couldn't fine one that would work for me, or I missed something important. My preferences of color management ...
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0 votes
2 answers
226 views

sRGB and AdobeRGB color spaces

They say that AdobeRGB has more colors than sRGB color space. What do they mean? Should they both have 16,777,216 colors (because they're both RGB color spaces)??
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8 votes
1 answer
8k views

FFMPEG: Convert .rgb images to video

I want to create a video from .rgb files. These just contain the pixels, no header. I'm able to cerate a video from pngs: ffmpeg -f image2 -r 30 -i %%06d.png -vcodec huffyuv video.avi But ...
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3 votes
1 answer
7k views

Is setting your card to a lower custom resolution dangerous?

I have a laptop computer with integrated Core i5 Intel HD graphics.. I want to use the vga output to connect to an old tech CRT tv that has an RGB input port, So I'm using a vga to RGB cable. I heard ...
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3 votes
1 answer
2k views

How do twelve-character color codes work? [duplicate]

Possible Duplicate: 48-bit colours? I'm using the Xfce 4.10 desktop environment on Ubuntu 12.04. While trying to get things the way I want I came across #aaaaaaaaaaaa and #666666666666 in ~/.config/...
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