Why is image_raw better than image_rect_color ?

asked 2018-07-21 17:19:37 -0500

earcz gravatar image

updated 2018-07-23 10:08:24 -0500

Hi, I am using Kinetic version.

I made monocular camera calibration of Logitech c930e by using this tutorial of ROS. Afterwards, I implemented rectification as described in the document of image_proc. When I compare image_raw and image_rect_color, image_raw provides desired/rectified image (see the comparison image link below). Actual raw image is provided from image_rect_color. As I know, image_rect_color must be the rectified and desired result. All in all, I am confused about this issue and need an explanation. What am I doing wrong ?

Comparison Image: https://drive.google.com/open?id=1eSQ...

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Comments

1

I've increased your karma so that you should be able to post images. Can you upload your comparison images?

ahendrix gravatar imageahendrix ( 2018-07-21 22:51:12 -0500 )edit

Thank you for your interest but I still cannot upload image. So, I dropped google drive link to comparison image in the question.

earcz gravatar imageearcz ( 2018-07-22 04:23:28 -0500 )edit

Please insert your image directly into the question. If you're having trouble can you please let us know so that we can help you

jayess gravatar imagejayess ( 2018-07-22 12:25:54 -0500 )edit

I still cannot upload image into my question. I don't know why. This issue should be fixed, because my actual problem needs an answer. Because of this image inserting problem, unfortunately my problem became worthless. Yet, comparison image can be seen via this link.

earcz gravatar imageearcz ( 2018-07-23 05:40:15 -0500 )edit

Can you put the rosrun or roslaunch commands and the body of any custom launch file you are using into the question?

lucasw gravatar imagelucasw ( 2018-07-23 10:46:04 -0500 )edit

@earcz the reason why you can't upload the image is because it's of a type that the site doesn't allow (webp). I was given an error, weren't you?

jayess gravatar imagejayess ( 2018-07-23 11:06:24 -0500 )edit

@lucasw, I did not understand what you said. By the way, I am not using any custom launch file. @jayess, Yes , I think you are right.

earcz gravatar imageearcz ( 2018-07-23 15:16:46 -0500 )edit

@earcz can you please redo the screen shot with an allowed extension (e.g., jpeg, png) and attach it directly to the question? That way the question is and will be self-contained (files disappear from the internet all the time)

jayess gravatar imagejayess ( 2018-07-23 16:01:14 -0500 )edit