The toBlackWhite() method is used to convert any type of the specified color representation to it’s black and white representation.
Syntax:
toBlackWhite(threshold)
Parameters: This method accepts a parameter as mentioned above and described below:
- threshold: This parameter holds the specified threshold value.
Return Value: This method returns color representation in it’s black and white representation.
Example 1:
Javascript
<!DOCTYPE html> <html> <head> <!-- Adding the FabricJS library --> <script src= </script> </head> <body> <script type="text/javascript"> // Calling the toBlackWhite() function over // the specified color values console.log(new fabric.Color("hsl(0, 100%, 50%)").toBlackWhite(0)); console.log(new fabric.Color("hsla(10, 40%, 53%, 0.6)").toBlackWhite(1)); </script> </body> </html> |
Output:
{"_source":[0,0,0,1]}
{"_source":[255,255,255,0.6]}
Example 2:
Javascript
<!DOCTYPE html> <html> <head> <!-- Adding the FabricJS library --> <script src= </script> </head> <body> <script type="text/javascript"> // Initializing some color values in different color format var A = "hex(fff00f)"; var B = "hsl(12, 13%, 25%)"; var C = "hsla(10, 40%, 13%, 0.6)"; var D = "rgb(10, 40, 13)"; // Calling the toBlackWhite() function over // the above specified color values console.log(new fabric.Color(A).toBlackWhite()); console.log(new fabric.Color(B).toBlackWhite(0)); console.log(new fabric.Color(C).toBlackWhite(1)); console.log(new fabric.Color(D).toBlackWhite(2)); </script> </body> </html> |
Output:
{"_source":[0,0,0,1]}
{"_source":[0,0,0,1]}
{"_source":[255,255,255,0.6]}
{"_source":[255,255,255,1]}
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