The "quality" parameter may be set to one of the following values:-
Low - No smoothing is performed but the image is produced very quickly
Medium - Some smoothing is performed giving a reasonable appearance in a time only slightly slowly
than the low setting.
High - A higher level of smoothing is performed giving a very good quality result but the time taken
to produce the image is about double that of the low setting.
Very High - A very level of smoothing is performed to give the best possible result. The time taken
is around 4 times that of the low setting.
| Low |
Medium |
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| High |
Very High |
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One of the big factors which effect the time taken to perform the image smoothing is the size of of the
image. The larger the image the more pixels there are to process and hence the more processing time is required.
| Is the Quality parameter supported on your installation of PHP
? |
|
The smoothing algorithm requires that PHP is running with a graphics environment of GD 2 or higher.
If your PHP environment is running with GD 1.x then the chart will automatically set the quality parameter
to low regardless of the specification in the property file.
For more information on the PHP GD environment click
here »
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