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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Edge Detection

Choose difficulty:

Beginner

Intermediate

Advanced

Edge detection finds:

a: Noise Explanation

Explanation

b: Boundaries Explanation

Explanation

c: Histogram peaks Explanation

Explanation

d: Blur Explanation

Explanation

Sobel is based on:

a: 1st derivative Explanation

Explanation

b: 2nd derivative Explanation

Explanation

c: Fourier transform Explanation

Explanation

d: Morphology Explanation

Explanation

Canny includes:

a: Median filtering only Explanation

Explanation

b: Multi-stage processing Explanation

Explanation

c: Contrast stretching Explanation

Explanation

d: Template matching Explanation

Explanation

Laplacian highlights:

a: Flat regions Explanation

Explanation

b: Rapid intensity changes Explanation

Explanation

c: Background only Explanation

Explanation

d: RGB colors Explanation

Explanation

Gradient magnitude is computed from:

a: Mean kernels Explanation

Explanation

b: Horizontal & vertical gradients Explanation

Explanation

c: PSF Explanation

Explanation

d: Structuring element Explanation

Explanation

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