image_scale_and_crop In Drupal 6 there is a parameter $destination for the function 'image_scale_and_crop()' . The parameter is not available in D7. I have the following code block.

image_scale_and_crop($image, 100, 70);


This code is executed an the thumbnail is created in a path if I examine the file directory. 

My question is, how I can determine the path where the cropped file is created in order to save it to db.
Maybe it's better to use an image style and use theme_image_style($variables)