03-24-2019 07:07 AM
How can I assigne imaginary plane coordinates to a non-geographic image.
I would like to calculate the area of each class of a classified non-geographic image. The image is a classified thin section SEM image.
My aim is to do some stastical calculations for each class of a thin section.
Although there are professional software to play with the SEM thin secion images, but I would like to experiment ERDAS.
Attached are both orginal thin section and the classified image. I want to assign imaginary plane coordinates and pixel size based on the scale bar shown on the image in microns.
PS: The image I am working on is converted to .Img format and classified, which I am not able to attach in this post.
Thanks and Best Regards.
03-26-2019 10:10 AM
You can enter a fake XY coordinate for the upper left pixel and specify the pixel size. Once you do that, your image will have map coordinates and you can do area computations.
To do this,