How can i create 24-bit JPEG file for DV-Lottery?

this is the rules:
Image File Format:
The image must be in the Joint Photographic Experts Group (JPEG)
format.

Image File Size:
The maximum image file size is 240 kilobytes (240 KB).

Image Resolution:
600 pixels high by 600 pixels wide.

Image Color Depth:
24-bit color [Note: Color photographs are required. Black and white,
monochrome images (2-bit color depth), 8-bit color, or 8-bit grayscale
will not be accepted.]

but in my photoshop i have only 8-bit and 16-bit. (see the attachment)
so How can i create 24-bit JPEG file for DV-Lottery?
its very immediately, plz.

 

oh that's going to be tough!

the Joint Photographics Expert Group was a committee, they never made a format that complied with their specifications.

I hope they'll allow you to use a JFIF, JPEG File Interchange Format image, cause that's the closest implementation to the specification that we have now.

 

Jpgs by definition(the native files) are already 24 bit: 8bits for Red, 8 bits for Blue, 8 bits for green!

I.E. they are 24bit RGB

In Photoshop, when you see 8, 16, 32 ---> bits = that is really BITS PER CHANNEL

so a 16bit file in photoshop would have 16 bits for R, 16 for B, 16 for G

make sense??