Extract data from chart picture

1 次查看（过去 30 天）
Mani Ahmadian
Mani Ahmadian 2016-7-25
评论： Image Analyst 2016-7-25
hi
I have some charts as pictures. I have to extract data automatically in (x, y) format. Because my charts are so long I cant digitize them manually. Please help me to solve problem.
Thanks a lot
Mani

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2016-7-25
I am certain that there is no "practical" code that can handle all of the various cases automatically. Possibly there might be practical code for one particular kind of graph, especially if it is all generated by the same software.
You are asking for a Deep Learning AI that can do natural language processing in Urdu, Arabic, Hutt, Horta, Linear A, and Drosophila melanogaster. Such a thing does not exist.
However, if you were to instead restrict yourself to one particular style of chart, in one particular alphabet and font, then your task might possibly be practical.
We are not even going to attempt a serious answer until you show us examples of all of the chart variations that will need to be examined.
  2 个评论
Mani Ahmadian
Mani Ahmadian 2016-7-25
Dear Walter
I attached one of my charts. Please guide me to extract data from each chart.
Thanks a lot
Mani
Image Analyst
Image Analyst 2016-7-25
You'd have to write a custom image analysis app for that. If the charts are all aligned in the same location, just use a template to mask out the text labels, axes lines, etc. Then scan what's left getting the row and column of the black curves and then turn those into some calibrated units based on the units that the axes have, like millimeters or whatever.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Bar Plots 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