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Frans van den Bergh
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Journal paper on MTF Mapper's deferred slanted edge analysis algorithm now available!
A new paper on MTF Mapper's deferred slanted edge analysis algorithm has been published in the Optical Society of America's JOSA A journal. The paper describes one of the methods that MTF Mapper can use to compensate for radial lens distortion. The paper al...
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Improved user documentation
If you are a long-time MTF Mapper user, then you are probably just as surprised by this unexpected turn of events as I am, but I have updated the docs. Actually, it gets better: I completely rewrote the user documentation to produce the new and improved (ye...
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Device profile support
From version 0.6.16 onwards, MTF Mapper now supports device profiles embedded in input image files. If you normally feed MTF Mapper with raw camera files (via the GUI), then this new feature will not affect you in any way. If you have been feeding MTF Mappe...
Device profile support
Device profile support
mtfmapper.blogspot.com
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A brief overview of lens distortion correction
Before I post an article on the details of MTF Mapper's automatic lens distortion correction features, I would like to describe in some detail the lens distortion model adopted by MTF Mapper. The basics Radial lens distortion is pretty much as the name sugg...
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Image interpolation: Fighting the fade, part 1
Over the last six months or so I kept on bumping into a particularly vexing problem related to image interpolation: the contrast in an interpolated image drops to zero in the worst case of interpolating at an exact half-pixel shift relative to the original ...
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Windows binaries are now 64-bit
I figured that by 2017 most Windows users will probably be running a 64-bit version of Windows, so it should be reasonably safe to switch to distributing 64-bit binaries from version 0.6 onward. The practical benefit of this move is that larger images can n...
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New --single-roi input mode
My original vision was for MTF Mapper to be fully automated; all you had to do was provide it with an image of one of the MTF Mapper test charts. The implementation was centered on the idea that detecting a dark, roughly rectangular target on a white backgr...
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View MTF (SFR) curves in the GUI
The Easter bunny has delivered. That most elusive of egg-laying mammals has brought you a new GUI feature, which finally completes the feature set I originally envisioned for MTF Mapper. To visualize the MTF curve (or SFR curve, if you prefer), load up any ...
View MTF (SFR) curves in the GUI
View MTF (SFR) curves in the GUI
mtfmapper.blogspot.com
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