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Eclipse Help Reference |
RAW File Loader |
This is the raw file process window that pops up when eclipse cannot recognize the file type. In this example the extension was .raw but any unrecognized extension will trigger this loader. It assumes that the person knows something about the image (bit depth, dimensions) and that the image is stored in an uncompressed format.
This dialog is designed to be an interactive experimenter. You should turn on Preview and Auto Update in order to get immediate feedback on your image. If your computer is slow or you are reading from a file that has poor throughput performance (over a network or off of a CD), you may need to leave Auto Update Off and use the Update Preview button from time to time.
The raw loader first goes to the Starting Offset and from there reads a contiguous block of data according to the dimensions and type selected. It then tries to display it (if preview is turned on). By interactively adjusting the values (assuming Auto Update is on), you can see the effect it has on the image loading process. If you don’t know the image size, you can scroll through the horizontal and vertical sizes. Since most images are stored as scan lines, adjusting the horizontal size first is recommended. Try different image types to see if it helps. Keep your eye on the status bar to see when you have attempted to read past the end of the file.
A palette can be applied, if one is stored in the image, by selecting its starting offset and format. If the image is upside down, it can be flipped.
Once you have succeeded in loading the image, the settings are stored using the extension as a key so that the settings will be remembered. You can even turn off the interactive step if you are happy with the results, and all your images will always be the same size. Eclipse will then directly load the image as if it was a built in format. This is useful for automation (such as batch conversion into another format!).
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