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To better understand how the convolution operation works, let’s build a theory for the convolution operator
by experimenting with it using an online application. This hands-on approach will help us grasp its real-world
functionality and potential.
Before we go into the details of theory for the convolution operator let us first experience it using an online
application.
Step 1 Visit the https://setosa.io/ev/image-kernels/ link.
Step 2 Scroll down the page to locate the section where the Convolution Matrix is applied to an image.
You'll see an image with an overlay of a convolution kernel (matrix) and how it affects the image when
applied.
Step 3 Click on the Choose File button.
The Open dialog box appears.
Step 4 Select the location where image is stored.
Step 5 Select the image for an image kernel and click of the Open button.
The image is uploaded.
Step 6 Click on the drop-down list to select the predefined effect.
Step 7 Select the effect that you want to apply to the image from the drop-down list.
The value of the effect is displayed in the matrix form.
Step 8 Try changing the values in the convolution operator and observe the modifications in the output
image.
Sharpen Effect Blur Effect
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