Image File Extension Registry entry
Specify the default file type, compression and quality for all images scanned using a twain device, and whether these values may be changed at the time of scanning.
Description
The Image File Extension entry specifies the default file type, compression and quality for all scanned images. When the scan is complete, the Add Scanned Image box displays and the nominated values are selected by default unless this Registry entry overrides the display of the Add Scanned Image box.
File extensions known to EMu are BMP, GIF, JPG, JPEG, PCX, PNG, TGA, TIF, TIFF.
Note: PDF can be added as a file format for scanned images, however ImageMagick requires that Ghostscript is installed on the EMu client's machine.
Usage
This Registry entry can be assigned to users, groups and system-wide:
Key | User | Group | System |
---|---|---|---|
Key 1 | User
|
Group
|
System
|
Key 2 | user | group | Setting
|
Key 3 | Setting
|
Multimedia
|
|
Key 4 | Multimedia
|
Image File Extension
|
|
Key 5 | Image File Extension
|
||
Value | format;compression;quality;boolean |
User
|
user | Setting
|
Multimedia
|
Image File Extension
|
format;compression;quality;boolean |
Group
|
group | Setting
|
Multimedia
|
Image File Extension
|
format;compression;quality;boolean |
System
|
Setting
|
Multimedia
|
Image File Extension
|
format;compression;quality;boolean |
where:
format | is the format in which the image will be scanned. |
compression | is the type of compression to be used when format is TIFF or PDF. Possible values are JPEG, ZIP, LZW, FAX3, FAX4, PACKBITS. |
quality | is a value from 0 to 100 where 100 is lossless (the highest quality possible). |
boolean | is true (the Add Scanned Image box will display, allowing these default values to be changed) or false (the Add Scanned Image box will not display and images will be saved automatically with these default values). |
Example
This entry specifies that the scanned image should be saved as a TIFF using JPEG compression with a quality setting of 85 (which gives very good compression with minimal loss of quality). The Add Scanned Image box will display, allowing these default settings to be changed:
Key | Setting |
---|---|
Key 1 | System
|
Key 2 | Setting
|
Key 3 | Multimedia
|
Key 4 | Image File Extension
|
Value | TIFF;JPEG;85;true
|