NodeJS – Sepia() is an inbuilt function that is used to apply a sepia or wash tone to the image.Syntaxsepia(cb)sepia() paramterscb – This is an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – SEPIA()Before proceeding to use sepia() functions, please check that the following statements are already executed for setting up the environment.npm init -y // Initialising the Node environmentnpm install jimp --save // Installing the jimp dependencyCreate a sepia.js file and copy-paste the following code snippet in it.Use node sepia.js to run the code.Note: – The method name should match with the JS ... Read More

NodeJS – Rotate() is an inbuilt function that is used to rotate the images. The image is rotated clockwise where the dimensions of the image remains same and no changes are made on them.Syntaxrotate ( r, mode, cb )Definition of rotate() paramtersr – Used to store the rotation angle at which the image will be rotated.mode – Used to store the scaling method of the image. This is an optional parameter.cb – This is an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – ROTATE()Before proceeding to use rotate() functions, please check that the ... Read More

NodeJS – Resize() is an inbuilt function that is used to resize the images to the desired size. We can use resize to set the height and width using a 2-pass bilinear algorithm. It can resize an image into any size as declared by the user. We can take input from the user or resize it into fixed Width*Height size.Syntaxresize(w, h, mode, cb)Definition of resize() paramtersw – This parameter is used to declare the width of the image. This is a required parameter.h – This parameter is used to declare the height of the resized image. This parameter is also required.mode – This ... Read More

NodeJS – Posterize() is an inbuilt function that is used to apply posterize to images upto the level 'n'. The n will be the input parameter.Syntaxposterize(n, cb)Definition of posterize() paramtersn – It will take input to adjust the posterize level. Minimum value possible is 2.cb – This is an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – POSTERIZE()Before proceeding to use posterize() functions, please check that the following statements are already executed for setting up the environment.npm init -y // Initialising the Node environmentnpm install jimp --save // Installing the jimp dependencyCreate a ... Read More

NodeJS – Opacity() is an inbuilt function that is used to change the opacity of the images. This function multiplies the opacity of each pixel by a factor between 0 and 1 to produce the output image.Syntaxopacity(f, cb)Definition of opacity() paramtersf – It takes a value between 0 to 1 as an input which will the paramtere to make the image opaque. Input 1 will make the image completely transparent.cb – This is also an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – OPACITY()Before proceeding to use opacity() functions, please check that the following statements ... Read More

NodeJS – Invert() is an inbuilt function that is used to invert the image colors.Syntaxinvert(cb)sepia() paramtersb – This is an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – INVERT()Before proceeding to use invert() functions, please check that the following statements are already executed for setting up the environment.npm init -y // Initialising the Node environmentnpm install jimp --save // Installing the jimp dependencyCreate an invert.js file and copy-paste the following code snippet in it.Use node invert.js to run the code.Note − The method name should match with the JS file name. Only then ... Read More

The composite() method overlays an image over another Jimp image at the given x, y coordinates. The image will be placed at the given position of coordinates from where we canSyntaxcomposite( src, x, y, [{ mode, opacitySource, opacityDest }] );Definition of composite() paramterssrc – The src defines the source location of the file where this image is located. It can be a local location or a remote location.x, y – Coordinates that signify where to put the file.mode – You can define a mode here for the image. For example, Jimp.BLEND_SOURCE_OVER – This mode will try to blend the new ... Read More

NodeJS – Grayscale() is an inbuilt function that is used to desaturate an image color into gray depending upon the amount between 0 to 100. The grayscale is basically the conversion of an image into gray from their original colors.Syntaximage.color([    {apply: 'greyscale', params: [value], cb } ]);Definition of greyscale() paramtersvalue – It takes the input for the parameter value to apply the greyscale. The range will be from 0 to 100.cb – This is an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – GREYSCALE()Before proceeding to use greyscale() functions, please check that ... Read More

NodeJS – Flip() is an inbuilt function that is used to flip the images. The images can be flipped either vertically or hoizontally as defined in the function. By default, the images are flipped horizontally.Syntaxflip(h, v, cb)Definition of flip() paramtersh – It takes a boolean value as an input. Image will be flipped horizontally if this is TRUE.v – It takes a boolean value as an input. Image will be flipped vertically if this is TRUE.cb – This is also an optional parameter that can be invoked after the compilation is complete.Input ImageUsing Node JIMP – FLIP()Before proceeding to use ... Read More

NodeJS – Crop() is an inbuilt function that is used to crop the images. We can use crop to select/crop an image within specified coordinates and dimnesions.Syntaxcrop( x, y, w, h, cb )Definition of crop() paramtersx – It will hold the value of x co-ordinate of cropping. (Required)y – It will hold the value of y co-ordinate of cropping. (Required)w – This parameter is used to store the width of the cropping image. (Required)h – This parameter is used to store the height of the cropping image. (Required)cb – This is an optional parameter that can be invoked after the ... Read More