Vector gradients - FILTER feGaussianBlur SVG-RAP Comparing

Raphael svg

[{"id" : "svg2","type" : "doc","left" : "0","top" : "0","width" : "400","height" : "400","viewBox" : "0 0 400 400","bgcolor" : ""},
{"id" : "defs4","type" : "defs","transform" : ""},
{"id" : "filter4871","type" : "filter","transform" : "","parent" : "defs4"},{"id" : "feGaussianBlur4873","type" : "feGaussianBlur","transform" : "","left" : "25","parent" : "filter4871"},
{"id" : "filtercircle1","type" : "filter","transform" : "","parent" : "defs4"},{"id" : "feGaussianBlur4873","type" : "feGaussianBlur","transform" : "","left" : "5","parent" : "filtercircle1"},
{"id" : "layer1","type" : "group","transform" : "","filter" : "","lineColor" : "#000000","fillOpac" : "1","lineOpac" : "1","lineWidth" : "0","left" : "0","top" : "0","width" : "1","height" : "1"},
{"id" : "rectground","type" : "image","href" : "abstract021.jpg","filter" : "","left" : "0","top" : "0","width" : "401","height" : "401","parent":"layer1"},
{"id" : "layer2","type" : "group","transform" : "","filter" : "","lineColor" : "#000000","fillOpac" : "1","lineOpac" : "1","lineWidth" : "0","left" : "0","top" : "0","width" : "1","height" : "1"},
{"id" : "firstimage","type" : "image","href" : "seastar.gif","filter" : "","left" : 190,"top" : 160,"width" : 200,"height" : 200,"parent":"layer2"}
]