CODEWITHSUNDEEP
pythonmatlabmatrix
bibinwilson
bibinwilson

Reputation: 358

How to create an image with height as pixel values

I want to create a jpg image with size 343 by 389 (Height by Width) with height as pixel values. For example for the whole topmost pixels, I need to give it as value 1, the next row of pixels should have a value 2. and finally, the last pixel with value 343. then export that image in jpg format. How to do this? either in python or in Matlab?

Upvotes: 0

Views: 157

Answers (2)

MichaelTr7
MichaelTr7

Reputation: 4767

In MATLAB

A solution in MATLAB using the meshgrid() function may work. An important part is to caste the array Image of type double into an unsigned 8-bit integer array, uint8 before exporting it as a .jpg using the imwrite() function.

[~,Image] = meshgrid((1:389),(1:343));
imwrite(uint8(Image),"Depth.jpg");

Upvotes: 2

bibinwilson
bibinwilson

Reputation: 358

Did it

from PIL import Image
import numpy as np
a = np.empty(shape=(343, 389), dtype=int)

for i in range(343):
    for j in range(389):
        a[i,j]=i
im = Image.fromarray(a,'L')

im.save('depth.jpg')

Upvotes: 1

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