Gamma/color calibration app? - Galaxy S 4 Q&A, Help & Troubleshooting

Does anyone know of an app that would allow me to calibrate the color/greyscale/gamma etc on the S4? Something along the lines of Advanced Color and Gamma Control seems to be exactly what I'm looking for, but it only works the Nexus 4.
I have a colorimeter and I'm just looking for something that will give me decent greyscale control. The only apps I've found that offer any color control seem to do nothing other than add an adjustable colored filter, which raises the black levels.
Any other AV science nerds out there who have found a good tool for this?

Related

[Q] color control...

just picked up the tab about an hour ago, and just started playing with it... so far, so good
the one thing that stuck out at me so far is the color... it's at least 300-500K too warm, and waaaaaay to vibrant...
is there anyway to tone it down a bit ?
I couldn't find a way to adjust/calibrate the color on the device. I wanted my photos to look correct ... so I created an action in Adobe Photoshop that correctly adjusts the photos before I download them to the SGT 10.1.
Below is a copy of a post I made on the post processing forum on fredmiranda.com:
A little work allowed me to create a Photoshop action that will take images from my normal calibrated NEC 2690 work environment and apply a transform that preps them for use on the Galaxy Tab 10.1. In case anyone needs to get images looking good on a tablet, here is what worked for me.
In Photoshop, I created three adjustment layers.
1. Hue/Saturation - Reduced saturation (this was to overcome the highly saturated LCD on the Samsung).
2. Curves - I adjusted the individual RGB channels in the curves adjustment layer to get the right color balance on the tablet.
3. Exposure/Gamma - I reduced the exposure slightly and adjusted the gamma value to offset the gamma on the tablet.
Then resized the image for the small screen and applied appropriate sharpening.
I standardized on using sRGB for output. I left the original images intact ... this action can be used to create a a custom set of images for display on the tablet.
The good news ... I ended up with a beautiful tool for sharing images.
UCSB said:
I couldn't find a way to adjust/calibrate the color on the device. I wanted my photos to look correct ... so I created an action in Adobe Photoshop that correctly adjusts the photos before I download them to the SGT 10.1.
Below is a copy of a post I made on the post processing forum on fredmiranda.com:
A little work allowed me to create a Photoshop action that will take images from my normal calibrated NEC 2690 work environment and apply a transform that preps them for use on the Galaxy Tab 10.1. In case anyone needs to get images looking good on a tablet, here is what worked for me.
In Photoshop, I created three adjustment layers.
1. Hue/Saturation - Reduced saturation (this was to overcome the highly saturated LCD on the Samsung).
2. Curves - I adjusted the individual RGB channels in the curves adjustment layer to get the right color balance on the tablet.
3. Exposure/Gamma - I reduced the exposure slightly and adjusted the gamma value to offset the gamma on the tablet.
Then resized the image for the small screen and applied appropriate sharpening.
I standardized on using sRGB for output. I left the original images intact ... this action can be used to create a a custom set of images for display on the tablet.
The good news ... I ended up with a beautiful tool for sharing images.
Click to expand...
Click to collapse
thanks
i guess that's the workaround...
not sure i like having to work around the color issue, but i guess it's better then sitting in front of a booker explaining why the model looks like she just took a bath in orange juice
I think turning off Auto adjust screen power in the screen settings helps the reds a little. There is also an app in the market that will let you adjust the RGB but for the life of me I can't remember what it is called. I uninstalled it because it made the launcher laggy but other than that it worked OK.
Found it: color filter service is the app. Its 99 cents.
jtseidner said:
Found it: color filter service is the app. Its 99 cents.
Click to expand...
Click to collapse
will definitely try this app...
rgb controls would be ideal, and will allow me to use a colorimeter...
thanks

ICC enabled kernel?

Does anyone know of a kernel that allows icc management of screen color?
Always loved this tab but the saturation sucks and the red it way down making things look purple instead of pink or red.

Conditionals and variables

VARIABLES AND CONDITIONS IVE USED.
For using an indicator to point out wind direction. Change "10" in [ar][ar/] to move indicator in or out.
[ar]10[/ar]
[r]#WCWDIR#[/r]
[as]#WCWDIR#[/as]
For adding a low volt warning. Change 25 to the voltage you want warning color to show. First color code is warning color, second is normal color. The two "•" represent the icon the variable is used for. If written using rich text, the • would be what changes color. In fact, i use that method for warning lights on some skins. You can also write text using rich text. Reqular text does not change colors.
$#BLEVN#!>25?•:•[c]ffff0000[/c]:?sBLEVN#!<=25?•$[c]ff000000[/c]
For a fully charged indicator. It is curently set to be transparent when less than 100v and green when charged. I use it as a tiny indicator light. You can change the colors, and if using rich text, you can change the •:• to say for instance, Draining:Charged, then assign colors.
$#BLEVN#!=100?•:•[c]ff01d522[/c]:?sBLEVN#!<=100?•$[c]00ffffff[/c]
For using a needle for a thermometer. Im still trying this one out. Sometimes it seems off. Maybe you can check it. Again, adjust ar for piviot point.
[ar]18[/ar]
[as]$(100/20*#WCTEMP#/1)$[/as]
[r]$(100/20*#WCTEMP#/1)$[/r]
I hope to have more soon. Im new at this so im learning as I go.
ATTENTION: IF YOU HAVE ANY PROVEN CONDITIONALS OR VARIABLES, PLEASE POST A COMMENT.
est.mcmlxxvii

Color settings

Anyone who has customized the color temperature and want to share a screenshot of your choice and why?
I use the m3 90% for video watching, using the prefixed "warm" setting and I'm happy with it, but with the options to adjust it I want to hear and try some other preferences

Samsung SM-T500 color temperature

Hello, is there any way to change the screen temperature of my device after rooting it? The blue filter of this tablet is very bad, as it does not change the relative values of the colors, but overlays a layer of color over the entire screen, thus spoiling the contrast and making the black colors horrible.
If you can provide any information about this, I would really appreciate it.

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