PxFrameObserver Class

Name: Pixelnetica™ Document Scanning SDK
Brand: Pixelnetica
SKU: DSSDK
Availability: InStock
Rating: 5 (3 reviews)

@interface PxFrameObserver : NSObject

Detects when a document’s corners are stable across camera frames, so the app knows when it is safe to capture a still.

Instance Properties

Name	Summary
checkedDistortion	The distortion (perspective skew) measured by the most recent `observe:`.
checkedFullness	The fullness measured by the most recent `observe:` — how much of the frame the document fills.

Name	Summary
average:transform:width:height:	Writes the accumulated average cutout, scaled to the given dimensions and transformed by the given matrix, into `cutout`.
average:width:height:	Writes the accumulated average cutout, scaled to the given dimensions, into `cutout`.
duplicate	Re-adds the last detection result to the accumulated average, smoothing the cutout across frames. Does nothing if there is no prior detection result.
observe:	Detects the document corners in a frame and accumulates them into the current state.
observe:roi:	Detects the document corners within a region of a frame and accumulates them into the current state.
reset:	Starts a new detection session.