Messages

1

General / Re: Agisoft PhotoScan 1.4.0 pre-release

« on: October 26, 2017, 06:04:19 PM »

Hello Nenad,

The "black level" value indicates the value of the pixel for the corresponding band that represent "true black" for this band.

OK, I have read the EXIF data, and I have entered the black level from meta, without any difference in processing output. How do I know that Photoscan is actually using the calibration images?

2

General / Re: Agisoft PhotoScan 1.4.0 pre-release

« on: October 24, 2017, 10:24:27 AM »

Hi Alexey,

I have a question regarding the MicaSense RedEdge camera radiometric calibration.

I have loaded photos, chosen to create multispectral, created manually the Calibration images folder and loaded the calibration panel images, masked them, but I am not sure that Photoscan is actually using the calibration images.

I have read the EXIF data and from the MicaSense I have got the reflectance information about the panel for every band.

I used that reflectance information in Calibrate Sensitivity setting as albedo (perhaps I made mistake here), after that sensitivity is automatically set in Camera Calibration/Bands and for every band, it is above 1, while black levels are set to 0.

The results I am getting are bad. After entering the albedo, all images look like overexposed, and the model is white.

Without radiometric calibration, it creates a good model.

Any suggestions?