PaletteCalculatorMBS.Col(i as Integer) as color

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The color array.

Index goes from 0 to count-1.
(Read and Write computed property)

PaletteCalculatorMBS.CountColors as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Counts how many different colors are in the palette.

PaletteCalculatorMBS.CreatePicturePalette(Pic as picture) as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Creates a picture palette based on the picture.

This function checks which colors are very often used in the image and builds a palette which may be better for this image than the default system palette.

Some examples using this method:

• /Images/GIF/Gif Write Animated
• /Images/GIF/Gif Write Animated with endless loop
• /Images/GIF/Gif Write Picture

PaletteCalculatorMBS.GetIndexOfColor(col as color) as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Searches the index in the palette for the given color.

Returns -1 if the color is not found.

See also:

• GetIndexOfColor(r as Integer, g as Integer, b as Integer) as Integer

PaletteCalculatorMBS.GetIndexOfColor(r as Integer, g as Integer, b as Integer) as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Searches the index in the palette for the given color.

Returns -1 if the color is not found.

See also:

• GetIndexOfColor(col as color) as Integer

PaletteCalculatorMBS.GetNearestIndexOfColor(col as color) as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Searches the index in the palette for the best matching color.

The best color is the color with the lowest value:
value=(r-col(index).red)^2+(g-col(index).green)^2+(b-col(index).blue)^2

Returns -1 if the color is not found (should never happen).

See also:

• GetNearestIndexOfColor(r as Integer, g as Integer, b as Integer) as Integer

PaletteCalculatorMBS.GetNearestIndexOfColor(r as Integer, g as Integer, b as Integer) as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Searches the index in the palette for the best matching color.

The best color is the color with the lowest value:
value=(r-col(index).red)^2+(g-col(index).green)^2+(b-col(index).blue)^2

Returns -1 if the color is not found (should never happen).

See also:

• GetNearestIndexOfColor(col as color) as Integer

PaletteCalculatorMBS.Transform(mem as memoryblock, width as Integer, height as Integer) as picture

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Transforms a 8 bit picture to a RGB picture.

The memoryblock must have the 8 bit picture data inside with each row being width bytes big. The memoryblock must have at least width*height bytes.

Returns nil on any error.

See also:

• Transform(Pic as picture) as memoryblock

PaletteCalculatorMBS.Transform(Pic as picture) as memoryblock

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Creates a memoryblock with 8 bit picture data.

The resulting memoryblock has width*height bytes.
Each RGB color in the picture is looked up in the palette and used to fill the memoryblock.

See also:

• Transform(mem as memoryblock, width as Integer, height as Integer) as picture

PaletteCalculatorMBS.TransformBetterDithering(Pic as picture) as memoryblock

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Creates a memoryblock with 8 bit picture data.

The resulting memoryblock has width*height bytes.
Each RGB color in the picture is looked up in the palette and used to fill the memoryblock.
This method uses dithering to make the picture looking better than with a better transform using code like Floyd-Steinberg.

Some examples using this method:

• /Images/GIF/Gif Write Animated
• /Images/GIF/Gif Write Animated with endless loop
• /Images/GIF/Gif Write Picture

PaletteCalculatorMBS.TransformFastDithering(Pic as picture) as memoryblock

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	Graphics & Pictures	MBS Picture Plugin	8.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Creates a memoryblock with 8 bit picture data.

The resulting memoryblock has width*height bytes.
Each RGB color in the picture is looked up in the palette and used to fill the memoryblock.
This method uses dithering to make the picture looking better than with a simple transform.