The blur parameter defines the smoothing factor around each color patch.
Select a edge filter to reduce to sharpen output and reduce the number of colors in an image
Configure the layers (areas of same colors) for the output vector image:
The mins parameter defines the size of speckles which will be ignored during vectorization.
Select the smallest amount of colors suitable for your image for best performance and smaller output vector file (SVG).
enable crowd source and your image will be also edited by other users of www.vectorizer.io and you will see their edits in the "variants" section.
Threshold defines the factor which is used to automatically merge similar colors in the layers list.