topic Re: How to correct the color in REALSENSE D415 in Items with no label

How to correct the color in REALSENSE D415

侑劉 — Mon, 26 Mar 2018 10:37:24 GMT

Hello everyone,

I use imatest to test color accuracy in REALSENSE D415.

The Color deviation is very large.

I want to correct color.

Cloud you offer solution to correct color for REALSENSE D415?

test environment: colorcheck 24 in test light box

light: D50

lux :500 Lux

Re: How to correct the color in REALSENSE D415

MartyG — Mon, 26 Mar 2018 15:53:45 GMT

The 400 Series cameras have a calibration tool that you can use.

Re: How to correct the color in REALSENSE D415

侑劉 — Thu, 03 May 2018 05:44:08 GMT

Hi MartyG,

Thank you for your support.

I try it.it is for depth fine-tuning,not for color correct.

Could you have any solution for this issue?

Re: How to correct the color in REALSENSE D415

MartyG — Thu, 03 May 2018 05:59:36 GMT

Color correction controls are provided in the 'Advanced Mode' of the 400 Series cameras. The Advanced Mode options can be accessed through the RealSense Viewer software.

1. Expand open the 'Stereo Module' options list.

2. Scroll down to the 'Advanced Controls' sub-option and expand that open.

3. Expand open the 'Color Correction' option.

Re: How to correct the color in REALSENSE D415

侑劉 — Fri, 04 May 2018 09:02:49 GMT

Hi MartyG,

thank you for your support.

I try it.I found color correct coe is 4x3 matrix.

I don't know the loaction color correct coe in the color matrix equation.

I don't fit color correct coe to software setting.

could you offer 4x3 color matrix equation ?example: 3x3 color matrix

by the way,I found inital config(xx.json).

the json file has two color corrcection coe, what self for application?

I want to correct color in the RGB sensor, which one I select it ?

Re: How to correct the color in REALSENSE D415

MartyG — Fri, 04 May 2018 09:29:49 GMT

The documentation says about the 400 Series cameras' extrinsics:

"The rotation field contains a 3x3 orthonormal rotation matrix between the imager's physical orientations ... Knowing the extrinsic parameters between two streams allows you to transform points from one coordinate space to another, which can be done by calling rs2_transform_point_to_point. This operation is defined as a standard affine transformation using a 3x3 rotation matrix and a 3-component translation vector."

I do not have an answer for your JSON question, unfortunately. Hopefully someone else can offer useful advice on that.