How to use pre-aligned multiband images?

[luminus]

I'm attempting to process a multispectral dataset using a set of tif images that can either be multi-page or multi-channel (It appears only multi-page is supported?).

Each page/channel is previously band aligned, so only the first/master channel would need to be used.

However, it appears in any multispectral chunk setup, regardless of multiplane or multilayer, it appears to be detecting features and attempting to realign all the other channels.

Is there anyway to force Photoscan in the scripting interface to stop doing this, and only use the primary channel for camera alignment?

[Alexey Pasumansky]

Hello luminus,

Actually, if all the images related to each band are of the same size and are already aligned, I suggest to use multi-channel TIFFs on input. Then just set Primary channel for the chunk using Set Primary Channel option in the Tools Menu to force PhotoScan using only the selected channel for the image matching and dense cloud generation.

[luminus]

Alexey, appreciate the response.

I'll give this a try again. I had a multichannel tif image setup earlier (a geotiff actually), but Photoscan couldn't view the image (it would load into the program fine).

Are there any requirements for the internal tiff structure (blocks vs scanlines, pixel interleaving?

[luminus]

Upon further testing, it looks like the tif files need to be internally tiled, not stripped, to correctly load into Photoscan.