In this chapter, you will explore how to use Imagemagick”s built-in functions to edit an image. You”ll learn how to create a faded and rounded look on the edges of your image, wrap it in a parallelogram shape, and even simulate a polaroid effect.

Vignette Image

The word ‘vignette’ means a small photograph or image which has a faded appearance with its background and doesn’t have a definite border. Having this effect highlights certain aspects of the image. So, to get images in this filter, Imagemagick provided an inbuilt function ‘vignetteImage()’. This function takes an image as input, applies a vignette filter, and obtained image has its borders blurred.

Syntax

public Imagick::vignetteImage(float $blackPoint, float $whitePoint, int $x, int $y): bool

This function has 4 parameters: blackpoint, whitepoint, x, and y. ‘Blackpoint’ and ‘whitepoint’ are float values. ‘x’ is an integer value that specifies the ‘x’ offset of the ellipse and ‘y’ is an integer value that specifies the ‘y’ offset of the ellipse.

Example

To have a better understanding of ‘vignetteImage()’ function, look at the below example. An imagick object is created at first and an image is taken as input. Then, ‘vignetteImage’ function is applied with all the parameters specified (blackpoint=30, whitepoint=10, x=40, y=20). Finally, the output is obtained using ‘writeImage()’ function.

<?php
   $image=new Imagick($_SERVER[''DOCUMENT_ROOT'']."/test/image.png");
   $image->vignetteImage(30, 10, 40, 20);
   $image->writeImage($_SERVER[''DOCUMENT_ROOT'']."/test/vignetteImage.png");
?>

Assume that the following is the input image (image.png) in the program −

Output

Rounding corners

There is a basic belief that rounded corners are easier on the eyes. That is, they are suitable for the natural movement of the head and eyes respectively. Rounding image corners can also make the image look more organized and neater.

To round the corners of an image, there are an inbuilt function ‘roundCorners()’ provided by Imagemagick. This function takes an image as input, rounds the corners, and produces that image as output.

Syntax

public Imagick::roundCorners(
   float $x_rounding,
   float $y_rounding,
   float $stroke_width =10,
   float $displace =5,
   float $size_correction =-6
): bool

This function has 5 parameters: x_rounding, y_rounding, strike_width, displace, and size_correction. ‘x_rounding’ and ‘y_rounding’ are float values and they control the amount of rounding. ‘stroke_width’, ‘displace’, and ‘size-correction’ are also float values which are used to fine-tune the rounding process.

Example

From this example, you will be able to clearly understand the usage of this function. The image is taken as input at first by creating a new Imagick object. ‘roundCorners()’ function is applied to that image with the help of the parameters specified (x_rounding=20, y_rounding=20, stroke-width=5, displace=5, size-correction=-10). Then, the output image is obtained using the function ‘writeImage()’.

<?php
   $image=new Imagick($_SERVER[''DOCUMENT_ROOT'']."/test/imagee.png");
   $image->roundCorners(20, 20, 5, 5, -10);
   $image->writeImage($_SERVER[''DOCUMENT_ROOT'']."/test/roundCornerImage.png");
?>

Assume that the following is the input image (image.png) in the program −

Output

Polaroid Image

In this chapter, you will be learning to simulate the polaroid picture. A polaroid picture is a picture that is taken by a polaroid camera. It is a type of camera that takes a picture and prints it after a few seconds. It is a type of instant print and has a special type of film holder. For simulating a polaroid image, Imagemagick has provided an inbuilt function ‘polaroidImage()’.

Syntax

public Imagick::polaroidImage(ImagickDraw $properties, float $angle): bool

This function takes in 2 parameters: properties and angle. ‘Properties’ specifies the polaroid properties and ‘angle’ specifies the polaroid angle in float value.

Example

In this example, you create a new imagick object and takes an image as input. Then, apply ‘polaroidImage()’ function on that image by specifying the parameters. The polaroid image is obtained as output.

<?php
   $image=new Imagick($_SERVER[''DOCUMENT_ROOT'']."/test/imagee.png");
   $image->polaroidImage(new ImagickDraw(), 30);
   $image->writeImage($_SERVER[''DOCUMENT_ROOT'']."/test/polaroidImage.png");
?>

Assume that the following is the input image (image.png) in the program −

Output

Creation of Parallelogram

In this section, you will be learning about the function ‘shearImage()’. It is an inbuilt function provided by Imagemagick. The functionality of this is to create a parallelogram. This function takes an image as input and shears the image on the X and Y axis to create a parallelogram and adds a background color.

Syntax

public Imagick::shearImage(mixed $background, float $x_shear, float $y_shear): bool

This function takes in 3 parameters: background, x_shear, and y_shear. ‘Background’ specifies the background color, ‘x_shear’ specifies the number of degrees to shear on the X-axis, and ‘y_shear’ specifies the number of degrees to shear on the Y-axis.

Example

In the below example, the image is taken as input, and ‘shearImage ()’ function is applied on that image. It takes in 3 parameters (background color= rgb (100, 200, 150), x_shear=10 and y_shear=10). The obtained output is displayed using the function ‘writeImage ()’.

<?php
   $image=new Imagick($_SERVER[''DOCUMENT_ROOT'']."/test/image.png");
   $image->shearImage(''rgb(100, 200, 150)'', 10, 10);
   $image->writeImage($_SERVER[''DOCUMENT_ROOT'']."/test/shearImage.png");
?>

Assume that the following is the input image (image.png) in the program −

Output