Read values from jpg images

Hello,

I do my Diploma theses and ned some values. The only file I have is a jpg file. I want to read out the values and plot the same map with the generated values with isolines for comparison. Is there a function to read out that values?

[Rik]

You mean imread?

[kleinerwels94]

I have a . jpg file for gravity values over a whole country.

I want to read these values out of this graphic to be able to work with them.

Unfortunately, this does not work with imread.

Additional i have a txt file wirh X,Y,H coordinates I want to display with thes gravity values.

Any ideas how i can make that?

[David Hill]

attach the jpg file

[kleinerwels94]

In the ideal case i want to read out the values for each coordinate of the textfile.

Answer 1

[Amrtanshu Raj]

Hi,

The easiest way to read out the value will be using OCR. You can use it to read the values from the chart and then plot them as per your need.

Hope this helps !!

[kleinerwels94]

Ok, thank you very much, it helped a lot!