IMAGE FILTERS - RANGES GROUP
The Zoomify Image Viewer included in the Enterprise edition supports the ability
to apply image filters to any Zoomify Image. This example demonstrates the image filters
in the group labeled 'Ranges', which is implemented using the HTML parameter
setting zImageFiltersVisible=ranges. These include the filters requiring dual slider buttons
to specify a desired range within a permitted range. These are supported for each color
channel.
The constraining effect of these sliders can be most easily seen by sliding any of the sliders
fully to the left or right to set all pixel values for that channel to the minimum or maximum
allowed. Or, slide all three sliders to the far left to achieve a completely black display, fully
to the right for a completely white display.
Filters can be enabled or disabled using additional HTML parameters - either in conjunction with
a group value or individually. See the example '140-ImageFilters-All' to view all of the image filters
at once and find additional information in the Parameter List document in the Documentation
folder of the product.