Converting Raw Format Images - Canon DIGITAL IXUS 330 Software Starter Manual

Converting RAW Format Images

Please check whether or not your camera model supports this function (p. 12).
The RAW image file format records image data as captured by the camera's image
sensor without further processing by the camera. Although the data is compressed
when recorded, the original data can be completely restored without any loss of
quality. Moreover, the RAW format is extremely compact, creating files approximately
one-quarter the size* of uncompressed files (RGB TIFF). However, RAW images
cannot be opened by standard image editing programs unless they are first
converted.
Conversion involves generating high-quality RGB signals from the RAW format files.
If you start RAW Image Converter from ZoomBrowser EX or use the TWAIN Driver
(Windows 98 / Windows 2000), you can adjust the attributes of the original data
before conversion to retain the degree of image quality appropriate to your purposes.
The result is high-quality images. In contrast, image data recorded in the RGB TIFF and
other standard uncompressed file formats is irrevocably processed in the camera and
again by an application program when you change the file attributes, which reduces
the image quality.
• Please see the Camera User Guide to learn how to shoot RAW images.
• ZoomBrowser EX, RAW Image Converter or the TWAIN Driver (Windows 98/
Windows 2000) is required to convert or download images to the computer.
Starting RAW Image Converter from ZoomBrowser EX
Start RAW Image Converter from within ZoomBrowser EX to convert raw images.
Converting RAW Images without Adjusting the Quality
1.
Select a RAW image.
• Select a RAW image from the Browser Display Area of ZoomBrowser EX.
2.
Click the [File] menu and select [Convert RAW Image].
• RAW Image Converter will start. For the subsequent procedures, please see
Converting Images with RAW Image Converter (p. 48).
• If a RAW image has already been downloaded to the computer, you can
start RAW Image Converter without using ZoomBrowser EX by double-
clicking a RAW image. If you are using the WIA Driver, you can select an
image from the camera, right-click it and select [Convert] to start RAW
Image Converter.
* As measured by standard Canon test conditions.
47