Image Functions

To use these functions, the Image Feature is required.

Fill(Image i, Number c)

 Fills the image with the given color

SELECT fill(image, 0.5) FROM Stream

Inv(Image i)

Inverts the pixel values of the given image

SELECT inv(image) FROM Stream

Get(Image i, Number x, Number y)

Return the value of the pixel at the given location

SELECT get(image, 100, 100) FROM Stream

Set(Image i, Number x, Number y, Number c)

Set the pixel at the given location to the given value

SELECT set(image, 100, 100, 0.5) FROM Stream

Rotate(Image i, Number angle)

Rotates the image at the given angle in degree.

SELECT rotate(image, 90.0) FROM Stream

Resize(Image i, Number width, Number height)

Resize the image to the given width and height

SELECT resize(image, 500, 500) FROM Stream

Sub(Image i, Number x, Number y, Number width, Number height)

Returns a sub image at the given location and the given width and height.

SELECT sub(image, 5, 5, 200, 200) FROM Stream

ToImage(<Number width, Number height>|<Matrix matrix>)

Creates a new image with the given width and height

SELECT toImage(500, 500) FROM Stream

ToMatrix(Image i)

Return the pixel values of the given image as a matrix