Returns the
filters to use when saving an image.
type TFilter = (pfNone, pfSub, pfUp, pfAverage, pfPaeth);
type TFilters = set of TFilter;
property Filters: TFilters;
Description
When saving the image, Portable Network Graphics allows to use different
filters to reduce the final image size. To compress the best as possible,
the component tests all the selected filters for each image line to detect
the best. This property allows to set which filters to test, meaning that
if you select all the options, the image will get smallest as it can be
but it will compress five times slower than if you had choosen only one
item.
Comments
It is always recommended to set this property to test all the filters, but
for speed purposes you might also choose only one filter and get full
speed when saving.
Components
> TPNGObject > Properties > Filters