Have a number of large (4x6 foot/ 120x180cm) acrylic paintings that I want to capture digital images of that will be suitable for re-printing large replicas of the paintings. Ideally, want to capture digital images that are high-quality, high-resolution, well-lit, with little or no glare. Want to create images that are higher resolution than the resolution of the camera being used to take them by combining together multiple images. Since there are multiple paintings, I am looking for a solution that is efficient, not requiring too much time per image.
How should I do this?
There is an Android mobile photo app called PhotoScan that will do this automatically for images captured from an Android phone. The app directs the user to take 4 photos centered at 4 different places forming a rectangle on the artwork, and then the software automatically performs a stitching together of the different photos, deals with perspective etc, and appears to select the best lit from each of the 4 versions for each pixel to yield that pixel in the final image, which pretty effectively removes glare. It also does a good job of handling the different lighting in each of the four component images so that the image looks uniform in the hand. Unfortunately, this app only allows for taking 4 images, not more, allows little additional control, and does not work with images except those taken with the Android device/phone.
How can a similar approach, hopefully automated, be used to accomplish this with photos taken with a DSLR?
Adobe Photoshop Photomerge makes it possible to stitch together multiple images, and does some of the perspective correction, but as far as I can tell it does not appear to provide a way to automatically handle the lighting, glare, and other issues.
Is there a good way to do this?