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I have to enlarge the whole image... if I understand row then i can get column (same concept)

For horizontal stretch..I have to duplicated the column of each pixel in a photo.
For vertical...

In the prompt, I have to try and duplicate an extra column or row.

For Horizontal stretch I have to duplicate an extra column...So in instead of have (for first row) {(0,0), (0,1), (0,2), (0,3)} I...

Thanks for your help. Do you have any hints as to how I would go about approaching rotating an image or enlarging it.
For rotating 90 degrees i know the new Column = row and new_Row = col. And 180...

Here is what I have so far for stretch. The user will input 0 or 1 in the driver.
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public static Photograph stretched(Photograph photo,...

I am using a custom class created by someone.

Photograph Class

Constructor Summary
Photograph(int width, int height)
Create a blank photo of a specified size.

Method Summary

Hi. Beginner here. I have a question about a Java program on manipulation of photos.

I want to learn how to rotate a photo 90 degrees, rotate it 180 degrees, enlarge it by doubling its width and...