The UIImage displays a Sprite for the UI System just like the Image component, but it has a few extra settings like corner radius (rounded corners), feather (soft edges) and border width (display as a border).
Manual ? Link to the manual page for this component
YouTube?? Link to the quick video tutorial for this component
Source Image ? The Texture that represents the image to display (which must be imported as a Sprite)
Material ? The Material to use for rendering the image.
Raycast Target ? Enable Raycast Target if you want Unity to consider the image a target for raycasting
Color ? The color to apply to the image
Image Type ? Determines how the Image should be displayed (Simple – Displays the full Image / Sliced – Displays the Image as a 9-sliced graphic / Tiled – Displays a sliced Sprite with its resizable sections tiled instead of stretched / Filled – Displays only a portion of the Image)
Preserve Aspect ? Ensure the image retains its existing dimension
Fill Method ? Fill method to be used by the UI.Image when Image Type is set to Filled (Horizontal – The Image will be filled Horizontally / Vertical – The Image will be filled Vertically / Radial90 – The Image will be filled Radially with the radial center in one of the corners / Radial180 – The Image will be filled Radially with the radial center in one of the edges / Radial360 – The Image will be filled Radially with the radial center at the center)
Fill Amount ? Determines how much of the Image will be filled (visible) when the Image Type is set to Filled. It respects the Fill Method. Value from 0 to 1.
Clockwise?– Determines if the fill will happen clockwise or counter-clockwise
Radius – Radius values for all the 4 corners (starting upper-left, clockwise)
Lock Radius – If enabled, when changing a radius value for one of the corners, all of the other radius values will be modified as well
Feather – Sets the image feather (also known as ‘soft edges’). Used to adjust harsh edges for graphics by applying a blur effect
Feather Range – Small – o to 1 / Medium – 1 to 5 / Large – 5 to Max between Image width and height
Feather Expands Size – Toggle if the feather effect should expand beyond image size or not
Border Width – Border width for the UIImage. Default value is 0 (no border)