清空筛选条件
清空筛选条件

the resolution for one pixel

1 次查看（过去 30 天）
simira atraqi
simira atraqi 2012-3-27
Hello, I have image in Matlab, how can I know the resolution for one pixel, if every pixel 1 mm or more, I mean how can I measure on the image. Thank you very much

请先登录，再回答此问题。

回答（2 个）

Jan
Jan 2012-3-27
You can't. An image is represented as a 3D RGB array, but there is no information about the resolution - usually.
If you think, that it is possible in theory to determine the resolution, please specify the expression "I have image in Matlab".
Image Analyst
Image Analyst 2012-3-27
You have to measure some known thing in your image, such as a ruler or meter stick. Then calculate the number of pixels per mm, or mm per pixel. Then you have a calibration factor that you can divide or multiply respectively to get your answer in mm.

类别

在 Help Center 和 File Exchange 中查找有关 Geometric Transformation and Image Registration 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by