PYME.IO.DataSources.MultiviewDataSource module

A DataSource which crops multiple separated (but equal sized) ROIs out of a larger frame and then recombines them.

Useful for situations such as multi-view imaging where there is blank space between the views - e.g. the Bewersdorf lab biplane setup.

Views are concatenated along the x-axis

class PYME.IO.DataSources.MultiviewDataSource.DataSource(dataSource, croppingInfo)

Bases: XYTCDataSource

Create a new Multiview data source in which multiple ROIs are cropped from an original image and concatenated. Used principally for cutting horizontally spaced ROIs out of a vertical band of the sCMOS chip, where there is dark space between the images and we want to avoid saving and transmitting this dark data.

Parameters

dataSourcePYME.IO.DataSources.X data source object

The DataSource to crop from

croppingInfo“dictionary like” object

Information about how to crop the image. Can either be a dictionary, or something which behaves like a dictionary (e.g. a MetaDataHandler). The cropping info should define the keys defined in CROP_INFO_YU above.

getEvents()

Return any events which are ascociated with this DataSource

getNumSlices()

Return the number of 2D slices. This is the product of the dimensions > 2

getSlice(ind)

Return the nth 2D slice of the DataSource where the higher dimensions have been flattened.

equivalent to indexing contiguous 4D data with data[:,:,ind%data.shape[2], ind/data.shape[3]]

e.g. for a 100x100x50x2 DataSource, getSlice(20) would return data[:,:,20,0].squeeze() whereas getSlice(75) would return data[:,:,25, 1].squeeze()

getSliceShape()

Return the 2D shape of a slice

moduleName = 'MultiviewDataSource'

release()

reloadData()