How to apply Blur filter?

[H1manshu21]

Discuss algorithm on how to apply blur effect on BMP image.

[chandrakant100]

Original Image and its Blured Image

[SHembram18]

By applying Blur filter to an image, The output of the image looks like little bit softer ( Something that can't visible clearly )
There is an method called Box Blur .
By calculating the average value of the neighbour pixel (one row & one coloumn)

[Tushar7-coder]

Agree with @HembramBeta777

[Tushar7-coder]

Pseudocode for Blur Filter

--> Make a temporary copy of the original picture to work with.
--> For a certain pixel:- (If it's not in the edge of the picture)-:
• Find the average of the 3x3 matrix with the pixel in question at the centre for R, G and B
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.
:- If it's on the top edge (except corner pixels):
• Find the average of the 2x3 matrix with the pixel in question at the position (1,2) for R, G and B.
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.
:- If it's on the bottom edge (except corner pixels):
• Find the average of the 2x3 matrix with the pixel in question at the position (2,2) for R, G and B.
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.
:- If it's on the left edge (except corner pixels):
• Find the average of the 3x2 matrix with the pixel in question at the position (2,1) for R, G and B.
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.
:- If it's on the right edge (except corner pixels):
• Find the average of the 3x2 matrix with the pixel in question at the position (2,2) for R,Gand B.
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.
:- If it's on the top-left corner:
• Find the average of the 2x2 matrix with the pixel in question at the position (1,1) for R,G and B.
• Store the three averages of R, G, B in the corresponding pixel of the temporary copy image.

[chandrakant100]

Good Approach !!