lens_calibration_gui not detecting exif data

[tduell]

lens_calibration_gui doesn't detect focal length and FL magnifier of images.
Sorry if this isn't implemented, but I did expect it to handle input images as per hugin.
I am also finding that it calculates huge values for image centre shift.
I will see if I can find some time to compare values with those from hugin, for same images.

[tmodes (tmodes)]

It detects focal length and crop factor with the same code as hugin. There was a little bug inside bringing these values to GUI. This is fixed in rev. 5cb5a33d8d5b
Concerning the values for image centre shift: I think the quality of these values depends on the image and the quality of the detected lines. So if the lines are bad or bad distributed it can result in "wrong" values. Check the corrected preview, if they are plausible.

[tduell (tduell-iinet)]

Thanks Thomas, it now knows about the focal length and crop factor.
I have run a test but not getting very good calibration results.
a=22.9, b=-2.3, c=-11.2, d=-6115.2, and e=105016017.7
Clearly the lines being found are not very good.
The images are of a vertical string line on a brick wall, taken for calibration purposes.
It detects lines in the brickwork,which probably are not too bad. I can't get it to detect the string.
Some more tests needed I think.

Cheers,
Terry