Image Physical Dimensions Ignored?

I’m creating a Createspace version of my book. I have versions of the photos that have been formatted to be the right size on the page. That is, the pixels per inch have been set so that the image will be, for example, four inches wide.

That is apparently overridden, such that the images appear as a different size, and it means that I will have to reinsert all the 43 images in my project in OpenOffice.

Is there any way to correct this?

Just found a solution. For the benefit of anyone else dealing with this:

In Openoffice, right click on the image, choose Picture…, choose the Crop tab, and select Original Size.