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CROP_GRID

CropGridStep is a pipeline step that crops sub images out of a larger image, based on a grid. The four corner coordinates are defined as points, and come from list of point of targeted data, in the following order: top left, top right, bottom left, bottom right. The output contains a list of cropped images from the grid, in order: (row,col) = (0,0), (0, 1), ..., (0, C-1), ..., (R-1, C-1).
Configs
Descriptions
imageName
Name of the input image key from the previous step. If set to null, it will try to find any image in the incoming data instance.
pointsName
Name of the list points specifying the corners, in order: topLeft, topRight, bottomLeft, bottomRight.
gridX
The number of grid segments between (top left and top right) and (bottom left and bottom right).
gridY
The number of grid segments between (top left and bottom left) and (top right and bottom right).
coordsArePixels
If true, the lists are in pixels coordinates, not from 0 to 1.
boundingBoxName
Name of the output bounding boxes key.
outputCoordinates
If true, the two lists are returned which contains the data of grid horizontal and vertical coordinates, respectively.
keepOtherFields
If true, other data key and values from the previous step are kept and passed on to the next step as well.
aspectRatio
If set, the smaller dimensions will be increased to keep the aspect ratio correct (which may crop outside the image border).
outputName
Name of the key of all the cropped output images from this step.