I have a problem

[Anonymous]

Hi,
I have a problem and I`ll be really appreciated if you can solve it.
My project is to read 2 Jpeg files (hand writings) and compare them by
using correlation coefficient.
I found out how to read a jpeg file and also I found out that I need
to convert my images to arrays to wire them to correlation block But I
couldn`t find how to convert them to arrays.
Thank you so much
best regards
Parto Yazdani

[johnsold]

The Picture to Pixmap.vi in Graphics >> Picture Functions has an output cluster called Image Data which contsins the image array.

Lynn 

[dangerousbill@gmail.com]

On May 20, 11:54 am, parto.yazd...@gmail.com wrote:
> I found out how to read a jpeg file and also I found out that I need
> to convert my images to arrays to wire them to correlation block But I
> couldn`t find how to convert them to arrays.

I did this years ago for greyscale images by converting jpg to .pgm
(portable gray map) files. The bitmap was dumped to a text file and
imported into Excel.

Some graphics programs will save the pgm as a continuous line of
numerical values, ready to import. Most save it as lines of ten
numbers, which has to be further processed by a custom program in
order to be imported into Excel. The ten-number lines have to be
converted to n-number lines.

DB