wxImage

• func blur( atom image, atom blurRadius )   
• func blur_horizontal( atom image, atom blurRadius )   
• func blur_vertical( atom image, atom blurRadius )   
• func convert_to_greyscale( atom image )   
• func convert_to_mono( atom image, object rgb )   
• func get_alpha( object params )   
• func get_blue( atom color )   
• func get_green( atom color )   
• func get_option( atom image, object name )   
• func get_option_int( atom image, object name )   
• func get_red( object params )   
• func has_option( atom image, object name )   
• func mirror( atom image, atom horizontal )   
• func rescale( atom image, atom width, atom height, atom quality )   
• func resize( atom image, object size, object pos )   
• func rotate( atom image, object angle, object center, atom interpolating, object offset )   
• func rotate_90( atom image, atom clockwise )   
• proc set_option( atom image, object name, object value )   

• Classes
• Graphics

wxImage

[func]
blur ( atom image, atom blurRadius )

Blurs the image in both horizontal and vertical directions by the specified pixel blurRadius. This should not be used when using a single mask colour for transparency.

wxImage

[func]
blur_horizontal ( atom image, atom blurRadius )

Blurs the image in the horizontal direction only. This should not be used when using a single mask colour for transparency.

wxImage

[func]
blur_vertical ( atom image, atom blurRadius )

Blurs the image in the vertical direction only. This should not be used when using a single mask colour for transparency.

wxImage

[func]
convert_to_greyscale ( atom image )

Returns a greyscale version of the image. The returned image uses the luminance component of the original to calculate the greyscale.

wxImage

[func]
convert_to_mono ( atom image, object rgb )

Returns monochromatic version of the image. The returned image has white colour where the original has (r,g,b) colour and black colour everywhere else.

wxImage

[func]
get_alpha ( object params )

Returns the alpha intensity of { wxImage, x, y }.

wxImage

[func]
get_blue ( atom color )

Returns the blue intensity of a wxColour or { wxImage, x, y }.

wxImage

[func]
get_green ( atom color )

Returns the green intensity of a wxColour or { wxImage, x, y }.

wxImage

[func]
get_option ( atom image, object name )

Gets a user-defined option. The function is case-insensitive to name.

For example, when saving as a JPEG file, the option quality is used, which is a number between 0 and 100 (0 is terrible, 100 is very good).

wxImage

[func]
get_option_int ( atom image, object name )

Gets a user-defined option as an integer. The function is case-insensitive to name.

If the given option is not present, the function returns 0. Use has_option as 0 is a possibly valid value for the option.

wxImage

[func]
get_red ( object params )

Returns the red intensity of a wxColour or { wxImage, x, y }.

wxImage

[func]
has_option ( atom image, object name )

Returns true if the given option is present. The function is case-insensitive to name.

wxImage

[func]
mirror ( atom image, atom horizontal )

Returns a mirrored copy of the image. The parameter horizontally indicates the orientation.

wxImage

[func]
rescale ( atom image, atom width, atom height, atom quality )

Changes the size of the image in-place by scaling it: after a call to this function, the image will have the given width and height.

For a description of the quality parameter, see the scale function.

Returns the (modified) image itself.

wxImage

[func]
resize ( atom image, object size, object pos )

Changes the size of the image in-place without scaling it by adding either a border with the given colour or cropping as necessary. The image is pasted into a new image with the given size and background colour at the position pos relative to the upper left of the new image.

wxImage

[func]
rotate ( atom image, object angle, object center, atom interpolating, object offset )

Rotates the image about the given point, by angle radians. Passing true to interpolating results in better image quality, but is slower. If the image has a mask, then the mask colour is used for the uncovered pixels in the rotated image background. Else, black (rgb 0, 0, 0) will be used.

Returns the rotated image, leaving this image intact.

wxImage

[func]
rotate_90 ( atom image, atom clockwise )

Returns a copy of the image rotated 90 degrees in the direction indicated by clockwise.

wxImage

[proc]
set_option ( atom image, object name, object value )

Sets a user-defined option. The function is case-insensitive to name.

For example, when saving as a JPEG file, the option quality is used, which is a number between 0 and 100 (0 is terrible, 100 is very good).