Question: Task A. Invert colors Write a new program become white: invert.cpp that inverts all colors, so wh……

In C++

Task A. Invert colors Write a new program become white: invert.cpp that inverts all colors, so white shades become black, and black Since black 0, and white 255, you should do the following transformation for each pixel color: 0 → 255 1→254 2 253 2541 255 → 0 Example

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Task A. Invert colors Write a new program become white: invert.cpp that inverts all colors, so white shades become black, and black Since black 0, and white 255, you should do the following transformation for each pixel color: 0 → 255 1→254 2 253 2541 255 → 0 Example

Expert Answer

Answer:

For applying transformation ie inveting the pixel color we shall subtract the extracted pixel value from 255.We shall use OpenCV in C/C++ to write te code in simplest form.

#include <stdlib.h>

#include <stdio.h>

#include <cv.h>

int main()

{

cv::Mat image = cv::imread(“sample.jpg”);

//Read the image sample.jpg

cv::imshow(“original”,image);

//Show thw image before applying any transformation

for(int i=0;i<image->rows;i++)

{

for (int j=0;i<image->cols;j++)

{

image.at<uchar>(i , j) = (255 – image.at<uchar>(i , j ));

//Fetching the pixel at index( i , j) and specifying the data type as unsigned char. Then applying pixel inverting by subtracting the retrieved /extracted pixel value from 255(Assumming grayscale pixels from 0 – 255)

}

}

cv::imshow(“Transformed”,image);

//show the transformed image after inverting

return 0;

}

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