Canon PowerShot S120 Manual (en)

RAW Images
A RAW image is image data that has recorded output data of imaging 
sensor. As image processing is not performed inside the camera when a 
photo is taken and the photo has been recorded in the special form of 
“RAW image data + Image processing conditions information at the time 
of shooting”, special software is needed to view or edit the image.
* “RAW” means “in a natural condition” or “not processed or refined”.
If described in terms of film, the concept of a RAW image is a shot 
image not yet developed (latent image).
With film, the image appears for the first time when it is developed. In 
the same way, for RAW images too, you cannot view them as images on 
your computer unless you perform subsequent image signal processing.
Therefore, even though it is digital, this processing is called 
DPP automatically carries out this “development” processing when 
RAW images are displayed in DPP. As a result, RAW images displayed 
in DPP are images whose development processing has been 
With DPP, you can view, edit and print RAW images without being 
particularly conscious of the development processing.
RAW Images
RAW Development
When RAW Development is to be Done
RAW images are recorded in the format “RAW image data + Image 
processing conditions information at the time of shooting”. When you 
open a RAW image in DPP, the image is automatically developed and 
you can view the image as an image to which image processing 
conditions at the time of shooting have been applied. 
Even if you perform various adjustments to the image you have opened 
(it undergoes automatic development processing each time), only the 
image processing conditions (development conditions) change and the 
“original image data itself” remains unaffected. Therefore, it is the 
perfect data for users who want to get creative with the images after 
shooting, as you do not have to worry about image deterioration. 
In DPP, the “Image processing conditions information” that can be 
adjusted is called a “Recipe” 
In DPP, all the adjustments (image processing conditions information) 
made with the tool palettes can be saved in the image as data called a 
, or can be saved, downloaded and applied to other 
images as a separate recipe file (extension “.dr4”,
). However, a 
recipe file with saved RAW image adjustments cannot be applied to 
JPEG or TIFF images.
Advantages of a RAW Image
Image processing conditions information
RAW image data 
Contents adjusted using the tool 
palettes can be handled 
individually as a recipe file 
(extension “.dr4”)