Multiple Crops

Overview

Multiple Crops extracts up to eight independent crop regions from a single input frame in one execution pass.

Use this node when your flow needs to analyze multiple fixed regions of the same frame simultaneously — for example inspecting several inspection zones on a conveyor belt, or reading plates from multiple lanes in a single camera view. It is more efficient than chaining multiple individual Crop nodes.

Input

Input Image

image required

The image frame to crop from. Connect this to a camera or upstream processing output.

Multiple Crop Type

string required

Crop mode for all regions in this node.

Values:

• cropBoxes (default) — rectangular crop boxes
• cropPerspectives — four-point perspective polygons warped into flat rectangular outputs

Crop Boxes

array required

Rectangular crop regions. Shown when Multiple Crop Type is cropBoxes.

Each entry includes x, y, width, height, optional label, and optional hexColor. Up to eight crops (crop1–crop8).

Crop Perspective Polygons

array required

Perspective crop regions defined by four corner points. Shown when Multiple Crop Type is cropPerspectives.

Each entry includes four [x, y] points, optional label, and optional hexColor. Up to eight crops (crop1–crop8).

Output

Crop 1 to Crop 8 — Output Image

image

Up to eight cropped image outputs (crop1–crop8). Each slot’s Output Image corresponds to the entry at the same position in Crop Boxes or Crop Perspective Polygons. Slots without a configured entry are not produced.