Imagine you're playing with a photo that’s like a piece of clay, you squish it and shape it again and again.
Blurring is like gently shaking the clay so its edges become soft and wobbly, while sharpening is like pressing your finger into it to make those edges pop out again. If you do this 1000 times, blur, sharpen, blur, sharpen, the image gets a bit tired.
What Happens to the Picture?
What Happens to the Clay?
If you shake and press your clay 1000 times, it might start to crumble or lose its shape entirely. Some parts could even fall off, just like some pixels in the picture might disappear or get mixed up.
So, blurring and sharpening too much can turn a neat photo into something that looks like it was made by a very tired artist! Imagine you're playing with a photo that’s like a piece of clay, you squish it and shape it again and again.
Blurring is like gently shaking the clay so its edges become soft and wobbly, while sharpening is like pressing your finger into it to make those edges pop out again. If you do this 1000 times, blur, sharpen, blur, sharpen, the image gets a bit tired.
Examples
- A kid repeatedly blurs and sharpens a photo of their dog, creating a strange new image.
- Someone tries to make a picture look like it's moving by blurring and sharpening it many times.
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See also
- How Does Digital Images - Computerphile Work?
- How Does 7 Levels Of Color Changes Work?
- What are computer vision techniques?
- What are mosaic algorithms?
- What are feature detection algorithms?