Questions tagged “opencv”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

0

votes

2

answers

179

How do I convert pixels to real-world size on a flat plane at a known distance?

lens-distortioncalibrationfield-of-viewopencvmeasurement

Photography Stack Exchange contributor

3y ago

0

votes

2

answers

89

Does camera calibration focal length depend on photodiode shape or fill factor?

opencvimage-sensorfocal-lengthcamera-calibrationcamera-intrinsics

Photography Stack Exchange contributor

5y ago

0

votes

2

answers

1080

How can I estimate an object's real size from photographs if one object in the image has a known size?

perspectivephotogrammetryopencvfocal-lengthmeasurement

Photography Stack Exchange contributor

8y ago

0

votes

2

answers

104

Can software read printed date stamps on scanned photos and write them to JPEG metadata?

scanningmetadataopencvworkflowjpeg

Photography Stack Exchange contributor

9y ago

0

votes

2

answers

176

How can I identify the projection type of a fisheye lens and estimate its distortion?

opencvdistortionfisheyehuginlens-calibration

Photography Stack Exchange contributor

9y ago

0

votes

2

answers

100

Why do 320×240 captures from a PS3 Eye show jagged diagonal edges when using YUYV?

yuyvopencvv4l2ps3-eyeimage-artifacts

Photography Stack Exchange contributor

9y ago

0

votes

2

answers

119

How can I align and stitch sequential images that share the same center but have changing edges?

opencvstitchingimage-alignmenthuginpanorama

Photography Stack Exchange contributor

10y ago

0

votes

2

answers

89

How can I batch-crop hundreds of coin photos while keeping a small border?

photoshopbatch-editingpost-processingopencvcropping

Photography Stack Exchange contributor

10y ago

0

votes

2

answers

110

How can I batch-crop a large set of photos so the subject stays centered?

photoshopbatch-editingopencvworkflowcropping

Photography Stack Exchange contributor

11y ago

0

votes

2

answers

86

How can I determine a smartphone camera's focal length in pixels for pose estimation?

opencvpose-estimationsmartphonefocal-lengthcamera-calibration

Photography Stack Exchange contributor

14y ago

0

votes

2

answers

167

How can I automatically detect faces in a batch of images and overlay a graphic on each one?

batch-editingopencvpythonface-detectionimagemagick

Photography Stack Exchange contributor

15y ago

0

votes

2

answers

114

Can software automatically level a photo by detecting horizons or vertical lines?

photoshopimage-editingpost-processingopencvlightroom

Photography Stack Exchange contributor

15y ago