matlab is getting slow when I am trying to read an image using imread() ?

I am working on image processing based attendance system, but when I am trying to read an image it takes very much time around 1 mints. Can you tell me how to speed up the time without degrading the very property of the image. The image detail is as follows:

Answer 1

[yonatan gerufi]

use

memory

before and after doing:

clear all.

and see the difference.

that's suppose to accelerate your speed.

what PC do you use? 18MP picture is quite large.

is you picture is on a server? move it to your PC.

[lucky]

Yes now I have added memory before and after clear all, and picture is also in the same folder as of the m file.But not much improvement I am attaching the m file.

[yonatan gerufi]

you misunderstood me,

"memory" is for your own check, don't put it in the code. just see how much free memory you have.

and you didn't do

"clear all".

"clear all" clears a lot more properties then just "clear".