Generating images from a list of integers

KNIME Analytics Platform
1

I have the following problem. I am working an a dataset consisting fo a table with 372451 rows, each row containing 784 integers representing a pixel in a 28 by 28 grayscale image.
How can I “extract” the images form the given data. This means to form a 28 by 28 table for every row of the dataset and then make an image of this. Resulting in 372451, 28x28 images. I’ve done this in Mathematica, which I know quite good, and now I tried to do this in KNIME - with no results (even the lack of a good idea :wink: )

Any hints strongly appreciated

2

Hi mgamer,

This can be done using the Data Row to Image node from the KNIME Image Processing community extension. The 28x28 grid can be specified via its Dimensions option.

Marcel

6 Likes
3

Thank you for the fast - and helpful - reply. After a bit of experimenting I got it to work :slight_smile:

2 Likes
4

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.