rgb format

[lightmentor]

How do I get jpg pictures into rgb format?  Apparently this is required for ebooks.  I have never even heard of rgb.

[Ken Anderson]

Use an image editing program such Adobe Photoshop.

[wolfsinger]

.jpg is a file format - RGB means Red / Green / Blue this is the color style of the image. Lulu perfers this over CMYK - Cyan / Magenta / Yellow / Black

If you are using CMYK then your colors will look different when they are translated to RGB and vice versa.

[lightmentor]

I have jpg image files in my ebook.  What exactly do I need to do to make these images acceptable to lulu?  Do I open the image in a program like GIMP and then resave it in rgb format?  I read somewhere that rgb is not actually a format to save the file and png is accaptable?  Is tha true?  What tools will help me do this?

[wolfsinger]

You just need to verify the colors of the .jpg.

.jpg is the file format and doesn't affect the colors.

Open your image and check the image information to see if it is RGB or CMYK for the colors. I don't do ebooks on Lulu - but have never had any problems with the ones I use for covers. Most non professional programs default to RGB.

[Oldwriter]

Carol:

Thank you for your insight the other day. I have now found the "Guide" and I think I'm on my way. You diserve a Kudo for that. - Steinberg

[wolfsinger]

Glad I was able to help Steinberg

[lightmentor]

Could you tell me how to verify RGB on a jpg?  I right click the image and selected properties, but that doesn't tell me.

[wolfsinger]

I don't know your program - on my program I right click and then click on image information and it gives inmformation on a number of things including pixel depths / colors which on the one I'm currently working with reads - RGB - 8 bits channel

I use Corel Paintshop Pro 3x

You have something similiar in your photo editing program that allows you to edit the color channel or color depth of the photo.

[DkMurphy]

Digital images are, by default, rgb.  If you took the photos and didn't change the color mode using image editing software, then they are rgb.  To verify, you can check the exif data or the color mode with most image editing software.  How you do this depends on the software.

But it is highly unlikely the images are not rgb.