Scandit SDK offers the capability to extract frames, e.g. when a successful barcode happened.
Capturing a frame after processing can be achieved by getting the FrameData object from the callback of choice. Then, the frame can be converted to the image format supported by the framework.
While in 6.x SDK the approach to capturing frames has been simplified, please note that not all frameworks support this feature.
Frame access is supported by several platforms indicated here:
and below links are referring to the particular classes and methods per framework: