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]}