This post explains how, and some ways not to do it. A few things to know about digital imaging if you want to try this sort of thing. One is that you can use any image on the web: photographs, movie files, images on the internet, whatever works, as long as it has a valid metadata such as the name of the camera or its manufacturer and year.
There are a handful of tools for manipulating raw images in Photoshop: a free utility called Digital Photo Stylus, an in-browser tool called DDS, a paid Photoshop extension called RAWTherapee, and a third-party tool called Photoshop Photo Manipulation. You can find the instructions for each on this article.
Digital Photo Stylus is a relatively basic program. Its main function is to convert an image you have captured into the form of a stylus. That allows you to manipulate images that you take using other tools. Once you’ve found the right program, you need to extract the data and format it, which the DDS offers to do.
The format of the data varies with Photoshop’s settings. For example, if your image has a transparent background, DDS will convert the data to a JPEG. But if you’ve loaded a photo with a gray background, you might need to do some more special work with Photoshop to get the color data into the file.
RAWTherapee is far from perfect. It has one very serious weakness (since you know it) being that the file can only handle a maximum of 255 colours, which is too low to be meaningful in making color prints and is more suited for converting images to grayscale. It also lacks an easy-to-use user interface, which made it hard for people with limited time to learn Photoshop’s quirks. You’ll need to manually enter the metadata file for it to work properly.
Another option for raw data manipulation is Lightroom, which has a number of image processing tools (such as HDR, which is also known as image stacking), and a web-based interface that lets you upload images and save them as RAWs (Rights Management Information). The DDS also supports this program, which it can use to automatically import your files into a RAW file and make it compatible.
RAWTherapee works very well on Photoshop CS6, but may not work on other versions. If you find that these programs aren’t available, you might be able to build an automation script that can extract the information from the