Define operator to perform detection of KeyLines and computation of descriptors in a row

[keylines, descriptors] = obj.detectAndCompute(img)
[...] = obj.detectAndCompute(..., 'OptionName',optionValue, ...)

Input

• img Input image, 8-bit grayscale.

Output

• keylines Extracted lines.
• descriptors Matrix that will store final descriptors.

Options

• Mask Optional mask matrix to select which lines in keylines must be accepted among the ones extracted (used when Keylines option is not empty). Not set by default.
• Keypoints Structure array that contains input lines (when filled, the detection part will be skipped and input lines will be passed as input to the algorithm computing descriptors. So if set, detection phase will be skipped and only computation of descriptors will be executed, using the lines provided. Not set by default.
• ReturnFloatDescr Flag (when set to true, original non-binary descriptors are returned). default false