Jpg Information

[MacDuke]

Hi,

Is there any way to get the H. Resolution, V. Resolution, Size, And Bit information from a Jpg?

Thanks,

[jim mcnamara]

jpg's have a header, and that information is all in there.

Go here (http://www.wotsit.org/search.asp?page=5&s=graphics) and download the information for jpeg.:D

[jim mcnamara]

Oooooops. I kinda lied a little. You said size. Most graphics formasts map data onto a device. The physical output device can be any size, so size is purely relative. In other words, there is nothing that says 'I am a picture that is 10cm x 40 cm"

[MacDuke]

You know when we see a JPG Property in windows explorer?
The windows explorer shows the Horizontal resolution, vertical resolution and bit count, I know this values but only for BMP :-))
... and nead to know also for JPG

Thanks,

[csammis]

Oh, you must mean pixel height, pixel width, and bit-depth. That information I believe is found in the JPEG header

[MacDuke]

yep, that's it!
Do you have any idea about how can I get that Header information?

Thanks,

[csammis]

I found this at www.freevbcode.com

Follow this link and download the file listed, it's a sample program with source code for getting info about image files.

http://www.freevbcode.com/ShowCode.Asp?ID=2275

They've got a lot of good code there besides that :)

[MacDuke]

Many thanks

That code help me a lot!