Which algorithm should I choose?

Canny is best for clean, distinct object edges, while Sobel and Prewitt are better for analyzing gradient intensity. Laplacian is ideal for detecting fine details and noise.

What does the aperture size do?

The aperture size determines the size of the kernel used for the derivative calculation. Larger values capture broader edges, while smaller values are more sensitive to fine details.

Can I see the original image next to the result?

Yes, enable the 'Show Original Comparison' checkbox to view the source image alongside the processed edge output.

What is the difference between Edge Threshold and Canny High Threshold?

The Edge Threshold sets the base sensitivity for standard operators, while the Canny High Threshold specifically controls the upper bound for the Canny detector's hysteresis process.

Can I change the color of the detected edges?

Yes, you can use the 'Edge Color' picker to customize the color of the extracted contours in your output image.

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Image Edge Detection

Apply professional edge detection algorithms (Sobel, Prewitt, Laplacian, Canny) with adjustable thresholds and visualization options

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10 options

FilesUpload source files for this workflow.1

Image FilefileRequired

Single file max size: 20 MBSupported types: image/jpeg, image/png, image/tiff, image/webp, image/bmp

Upload image for edge detection

SettingsAdjust formats, ranges, numbers, and modes.8

Edge Detection MethodselectOptionalEdge ThresholdnumberOptionalThreshold for edge detection (0-255)Canny High ThresholdnumberOptionalHigh threshold for Canny detector (0-255)Aperture SizenumberOptionalKernel aperture size (odd number, 3-15)Output ModeselectOptionalEdge ColorcolorOptionalColor for detected edges (hex or R,G,B)Output FormatselectOptionalQuality (1-100)numberOptionalOutput quality for lossy formats

TogglesEnable or disable optional behavior.1

Show Original ComparisoncheckboxOptionalEnabled when checkedDisplay original image alongside edge detection results

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Image Edge Detection

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1. Isolating Product Contours

2. Surface Texture Analysis

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