FIJI (ImageJ): Brightness & Contrast Enhancement
HTML-код
- Опубликовано: 18 сен 2024
- Learn how to use FIJI (ImageJ) to adjust image brightness and contrast using linear and nonlinear tools (enhance contrast, gamma)
#FIJI, #ImageJ, #brightness, #contrast, #gamma. #2021
SUBSCRIBE to have first access to new video tutorials: / @johanna.m.dela-cruz
![FIJI (ImageJ): Fiber Orientation and Direction [Directionality & OrientationJ]](/img/1.gif)
Thank you for the video! I have a question: Does changing the gamma factor alter pixel size?
Hi Laura. Thanks for watching. Changing gamma is a nonlinear adjustment of brightness/contrast. It does not change pixel size. It does, however, change intensity values.
@@johanna.m.dela-cruz thank you!
Thank you very much! it was very helpful
Hi @asmae laouina. I’m glad to be of service. Thanks for watching.
very good, thanks!
@roberto31589 Thanks for your support.
Thank you for the great video. If the brightness and contrast affect the pixel intensity, do you use them for presentation or analysis as well? I mean, if you have a Group A image and a Group B image, and if you manipulate the brightness and contrast only for the Group A image. In this case, I think the unintentional bias can affect the data. I wonder what case you usually use the brightness & Contrast enhancement. Thank you.
Brightness and contrast enhancement is a visualization tool. If you had 2 images where you wanted to show a difference in intensity for instance, you can set a certain brightness level that will be used for both images. This would provide qualitative information.
Thank you for your kind reply. You mean the brightness and contrast are used for a qualitative goal, like to show good image contrast for a publication or an article, after you are done with all of the quantitative analysis, right?@@johanna.m.dela-cruz
@@wangkukson5894 you can also use contrast enhancements for easier segmentation.
Thanks a lot. Didn't you set up anything for donation here? you deserve it. @@johanna.m.dela-cruz