v0.6.10

[rafalkowalewski1]

• Calibration .yaml file saves number of frames and step size in nm
• picasso.lib.merge_locs function can merge localizations from multiple files
• Mask dialog in Picasso: Render saves .png mask files
• Mask dialog in Picasso: Render allows to save .png with the blurred image
• Picasso: Localize - added the option to save the current view as a .png file
• Picasso: Render - functions related to picking moved to picasso.lib and picasso.postprocess
• Picasso: Render - saving picked localizations saves the area(s) of the picked region(s) in the metadata file (.yaml)