Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [rgb]

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

-1
votes
0answers
14 views

Addressable RGB interoperability

Are argb devices connected to argb headers on a motherboard locked to that vendors implementation? Ex: If I use an ASUS mobo, and connect a fan to one of its argb headers, am I locked to using ASUS ...
0
votes
0answers
52 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 ...
1
vote
0answers
23 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 ...
0
votes
0answers
174 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 ...
1
vote
0answers
39 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 ...
0
votes
1answer
1k 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 ...
-1
votes
1answer
36 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 ...
1
vote
0answers
25 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 ...
0
votes
1answer
133 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 ...
0
votes
1answer
39 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?
88
votes
11answers
28k 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-...
-1
votes
1answer
41 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 ...
0
votes
2answers
40 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 ...
0
votes
1answer
151 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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
500 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 ...
0
votes
0answers
22 views

Photoshop | Green / Red / Blue fields after channel-calculation

I'm working with PS since some years, but I've never seen this before AND I can't really -google it / -google a solution The MAIN Problem is that this persists on the original / background (untouched)...
2
votes
0answers
564 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-...
1
vote
1answer
279 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 ...
0
votes
1answer
631 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 ...
1
vote
1answer
782 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 )...
1
vote
2answers
7k 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 ...
0
votes
3answers
586 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: ...
2
votes
2answers
12k 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 ...
-1
votes
1answer
1k 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 ...
2
votes
4answers
1k 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 ...
1
vote
1answer
384 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?
0
votes
0answers
512 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, ...
0
votes
2answers
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?
57
votes
6answers
77k 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 ...
0
votes
1answer
729 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, ...
0
votes
2answers
1k 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 ...
1
vote
1answer
137 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 ...
2
votes
0answers
815 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 ...
0
votes
2answers
202 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)??
6
votes
1answer
5k 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 ...
3
votes
1answer
4k 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 ...
2
votes
1answer
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 ~/....
0
votes
0answers
2k views

Decoding .rgb file into readable image data?

I've extracted some image assets out of a popular Simpsons game but I can't find any application to read or convert them, and I'm not even sure what format they are in, besides for their .rgb ...
4
votes
1answer
24k views

Converting RGB to CMYK color profile in GIMP

I want to convert an sRGB image in gimp to CMYK. Heres what I did: Downloaded CMYK color profiles from Adobe. Extracted them in the icc folder (/usr/share/color/icc/) I opened my xcf image in gimp ...
0
votes
1answer
2k views

Exporting .psd to .jpeg changes CMYK to RGB?

I don't know much about Photoshop. I created a business card in RGB profile but the printer needs it as CMYK. I therefore just went to "Mode", changed it to CMYK 16 Bit and thought that was it, but ...
8
votes
2answers
6k views

CMYK conversion from RGB

I have several RGB images that I have to convert to CMYK for a paper submission. I have a Photoshop Elements 9 license but it doesn't support CMYK. I remember having tried with ImageMagick on Linux ...
7
votes
1answer
23k views

What is YCbCr444?

I just brought home my first HD monitor, a ViewSonic VX2753mh, hooked it up, and began looking at the settings. Immediately, I noticed a very distinct "washed-out" feel to the colors. Googling around, ...
0
votes
2answers
1k views

Trying to reproduce a color in CMYK Mode

Firstly i cant find an appropriate forum, so I'll ask this question here in case someone might know the answer. I'm very new to design so please bear with me. I am creating a set of business cards ...
1
vote
1answer
1k views

ImageMagick is incorrectly showing some images as negatives

1 2 3 4 Image 1 is the original main file as displayed by ImageMagick display. It is showing up as a negative, but shouldn't be. When displayed using other tools, it's normal. Image ...
0
votes
1answer
83 views

Universal Color Selection Tool

I need to find the RGB of a color that is on an emulator. I need an app that can get the RGB from a separate application. Any ideas?
0
votes
2answers
3k views

How do I make sure my color stays the same in my different .psd files?

I asked two Photoshop experts I know but they haven't got a clue because all my settings are exactly the same, in both files. (except the RGB type!) I use RGB color, 72DPI, 8 bits / channel. No ...
1
vote
1answer
9k views

Projector image is all green

I'm using a lamp projector attached via VGA to a MacBook running OS X 10.6. The problem that I'm experiencing is that the image is all green. How much green? Well, it looks like there is no red ...
1
vote
6answers
38k views

Adobe photoshop image export causes changes in colors

I am using Adobe Photoshop CS2 Version 9.0.2 on Windows XP. I am having trouble exporting images from a psd file, because the colors in the resulting image are not the same as in the original file (...