How can I generate whiteish images with this image? This code is for example.

A = im2double(imread('fruit.png'));
B = 1-((1-A).*(1-permute([1 0 0],[1 3 2])));
figure; 
imshow(B)

[Walter Roberson]

Duplicated by https://www.mathworks.com/matlabcentral/answers/1609600-how-do-i-make-this-image-whietish?s_tid=srchtitle

[DGM]

The above operation is a 'screen' blend with red. It does not create the output image shown.

This thread is a consequence of the examples here:

https://www.mathworks.com/matlabcentral/answers/1606650-how-to-generate-reddish-greenish-blueish-and-whiteish-images-using-color-images-i-m-using-this-f

At the end, I gave a handful of examples for the "whiteish" case.

Answer 1

[Voss]

I don't know if this is what you have in mind, but maybe something like this:

whiteness = 0.5;
A = im2double(imread('fruit.png'));
B = mean(A,3).*ones(1,1,3)*(1-whiteness)+whiteness;
figure;
imshow(B)

Here, whiteness is a parameter for you to tune (between 0 and 1, inclusive) in order to achieve the desired "whiteish"-ness.

whiteness = 0; will give you the grey-scale version of the original image where each RBG channel is the average of all three RGB channels in the original image. whiteness = 1; will give you an image of all white.

Answer 2

[Image Analyst]

You can make an image "whiter" by decreasing the saturation and increasing the value.

hsvImage = rgb2hsv(rgbImage);
[hImage, sImage, vImage] = imsplit(hsvImage);
sImage = someFactor1 * sImage; % someFactor1 < 1 to reduce vividness of color
vImage = someFactor2 * vImage; % someFactor2 > 1 to brighten the image
hsvImage = cat(3, himage, sImage, vImage);
rgbImage = hsv2rgb(hsvImage);