Research Article
[Retracted] Discussion on Teaching Method of Digital Image Processing Technology Based on PBL
Table 1
Correspondence between knowledge points and practical problems.
| Knowledge points | Practical problems |
| Smooth filtering | Blur photos to enhance haziness, remove freckles on the face | Algorithm for converting color image to gray image | Photo style transformation (retro style, sketch style, etc.) | Image addition algorithm | Add text, border, and other decoration operations to the photo Image stitching | Geometric transformation of image | Adjust the angle of the photo, zoom in and out of photos | Image sharpening Image segmentation | Image matting, composite photo |
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