SMS

You asked if MTFmapper worked as expected. I am fully aware that I use your program outside of the original intent. I like that your method is independent of the shift created by the glass thickness. I had hoped for bigger numbers on the air images to have a baseline that is clearly distinct from the images distorted by the window. I was very optimistic because I could resolve the concentric dark border in the fiducial mark and that seemed as focused as it could get. I find annotations of 0.08 to...

Thank you very much for the software and your interest in my project and your kind advise. I will soon take new images of hopefully better windows and will keep my target clean. Perhaps there is even a cleaning cycle on the printer that could run before the preparation of new targets. To minimize the noise, I could take multiple images and then average but any position or angle variance will contribute to apparent line spread. Please see 3 attached files. Cropped images have no processing. Highcontrast...

I would like to evaluate the distortion effects of windows mounted in front of the lens. Lens imaging through air should generate the baseline. Camera Basler-ace-aca5472-17um-usb-30-monochrome captures 20-Mpix 12-bit monochrome saved as 16-bit PNG images. Lens: Century Tele-Athenar 230mm F3.8 C-mount lens (focused on target). Window: mounted at about 1 m from the camera at different theta and/or phi. Some of the test materials generate noticeable “astigmatism”. Target: MTF target design lensgrid_A3...