Stretched canvas is a great medium for photographs. I particularly like using canvas on images whose presentation is enhanced by the material's texture. I tend to shoot and prefer tightly composed images. When I first started printing stretched canvas, I found this style problematic for ordering wraparound pieces. In order to have enough canvas to wrap around the frame it is necessary to effectively "crop" the image seen on the front. I found this very undesirable.
In the posted video above, I show how you can overcome this limitation by simply mirroring the edges of the image. Although you can do this in any image-editing program, I created and provide (download link) a Photoshop action that will do this automatically for any image. To install this action, download it to your computer. Open up the Actions pallet in Photoshop (Window > Actions). In the Actions pallet, click the options button (looks like 4 horizontal lines) and hit "Load Actions." Select the downloaded file and it should be ready.
This technique only works if you know how far the canvas needs to be extended. At Nations Photo Lab, for instance, the canvas needs to be extended by 2 inches in each direction in order to produce a 1.5 inch depth canvas. This example shows that the canvas extension length will be greater than the frame depth. The extra 0.5 inch length is needed so that the canvas can be attached to the back of the frame.
If you try this out and have any questions or concerns I would love to hear from you in the comments!