How to Identify Objects with Image Contouring
Blog post from Roboflow
Image contouring, a computer vision technique for identifying object locations in images by detecting edge pixels, is explored through the use of Roboflow Workflows, a web-based application builder. The process involves creating a workflow on the Roboflow platform, starting with image preprocessing steps like converting to greyscale, applying a blur, and thresholding, which turns pixels into black or white based on a set threshold. The image contouring block is then added to the workflow, allowing users to return an image showing contours, the number of contours identified, and the contour hierarchy. This guide demonstrates the workflow's application by testing it with an image, resulting in successfully identifying contours that represent objects in the image.