24小时热门版块排行榜    

查看: 2652  |  回复: 12
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

PEEK_polymer

新虫 (初入文坛)

[求助] Image J 统计孔尺寸 已有2人参与

请问大神们,Image J 软件怎么计算图片中的泡孔数目和尺寸????万分感谢!!

Image J  统计孔尺寸
6-2.jpg
回复此楼

» 收录本帖的淘帖专辑推荐

发泡

» 猜你喜欢

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

PEEK_polymer

新虫 (初入文坛)

引用回帖:
3楼: Originally posted by dota at 2015-11-24 09:38:56
several screenshots...

1) set scale.png

2) adjust threshold.png

3) analysis particles.png

4) result.png
...

太感谢了!!还有一个问题,就是阈值要怎么调才算合适?Auto 好像不太对
4楼2015-11-24 10:12:29
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 13 个回答

dota

木虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
1) Set scale. Enlarge your image, draw a line of the exactly same length to the scale bar. For you image, 81.5 pixel = 20 um)

2) Adjust threshold, which showed reasonable segmentations.

3) Analysis Particles. Based on the visional pore sizes, I would say areas between 100 um^2 and 600 um^2 should be the correct pores.

4) Copy the results into the Excel to calculate the average and the stDev.

The 45 pores were detected out. The pore perimeter is 25.6 +/- 9.8 um. Some pore might be missed due to either the irregular shapes or the low image contrasts (not good segmentations)

Cheers!
2楼2015-11-24 09:36:04
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dota

木虫 (著名写手)

【答案】应助回帖

引用回帖:
2楼: Originally posted by dota at 2015-11-24 09:36:04
1) Set scale. Enlarge your image, draw a line of the exactly same length to the scale bar. For you image, 81.5 pixel = 20 um)

2) Adjust threshold, which showed reasonable segmentations.

3) Anal ...

several screenshots...
Image J  统计孔尺寸-1
1) set scale.png


Image J  统计孔尺寸-2
2) adjust threshold.png


Image J  统计孔尺寸-3
3) analysis particles.png


Image J  统计孔尺寸-4
4) result.png

3楼2015-11-24 09:38:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dota

木虫 (著名写手)

引用回帖:
4楼: Originally posted by PEEK_polymer at 2015-11-24 10:12:29
太感谢了!!还有一个问题,就是阈值要怎么调才算合适?Auto 好像不太对...

Slightly adjust, analysis, and check up the result. If not so happy, just re-do. It is based on your personal experience. So, there is bias.
5楼2015-11-24 11:04:46
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
信息提示
请填处理意见