How to convert pixel value into mm?
8 ビュー (過去 30 日間)
古いコメントを表示
In my algorithm result, I am getting final circle diametr value in pixel I want to convert that into mm.How to go for this.
0 件のコメント
回答 (1 件)
Walter Roberson
2012 年 12 月 5 日
You need to have additional information that tells you the conversion between pixels and mm. Most images do not have that information available, and many of the ones that do have it available in the headers are incorrect. You should only trust the headers in the case of calibrated scientific instruments.
The easiest way to proceed is to use the same conditions to take an image of an object with known size, and measure the pixel to size conversion from that.
1 件のコメント
Image Analyst
2012 年 12 月 5 日
参考
カテゴリ
Help Center および File Exchange で Convert Image Type についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!