| | This modifier is used to automatically adjust the orientation of an image based on its embedded EXIF data. When a photo is taken, the camera records its orientation in the image's metadata. However, some image editors or viewers may not properly handle this information, causing the image to appear rotated incorrectly. The $autoOrient modifier automatically reads the orientation data and rotates the image accordingly. This can be especially useful when dealing with images uploaded from mobile devices or cameras with rotating sensors |
$blur/
<<radius>>/<<sigma>>
| | This modifier applies a Gaussian blur to the image, which can be used to reduce noise or soften details. The <<radius>> parameter specifies the radius of the blur kernel, and the <<sigma>> parameter controls the standard deviation of the Gaussian distribution. A larger <<radius>> value will result in a more blurry image, while a larger <<sigma>> value will result in a smoother transition between pixels. The $blur modifier can be used in combination with other modifiers to achieve various effects, such as creating a shallow depth of field or simulating motion blur.
|
$border/<<width>>/<<height>>/<<colour>>
| | This modifier adds a border of a specified width and height around the image, with a specified color. The <<width>> and <<height>> parameters specify the size of the border, and the <<colour>> parameter specifies the colour of the border. The <<colour>> parameter can be specified using a variety of formats, including hexadecimal values (e.g. #FF0000), RGB values (e.g. rgb(255,0,0)), or color names (e.g. red). The $border modifier can be used to add visual separation between an image and its surroundings or to create a frame around an image. |
| | The $charcoal/<<factor>> modifier applies a charcoal-like effect to the image, simulating the appearance of a charcoal sketch. The <<factor>> parameter controls the intensity of the effect, with higher values producing more pronounced results. This effect works by simulating the appearance of charcoal on paper, emphasising the edges and contours of the image while reducing the amount of detail and texture. This can be useful for creating artistic or stylized versions of photographs or illustrations. The $charcoal modifier can be combined with other modifiers, such as resizing or cropping, to achieve various effects. |
$colorize/<<red>>/
<<green>>/<<blue>>
| | This modifier applies a colour tint to the image, changing the colour balance of the image by blending the original colours with the specified tint. The <<red>>, <<green>>, and <<blue>> parameters specify the intensity of the red, green, and blue colour channels respectively, ranging from 0 to 255. Setting all three values to 0 will result in a grayscale image, while setting them all to 255 will result in a fully saturated tint. The $colorize modifier can be used to add a coloured effect to an image, such as a sepia tone or a blueish tint. This modifier can also be used in combination with other modifiers, such as resizing or cropping, to achieve various effects. |
$contrast/<<+-multiplier>>
| | This modifier modifier adjusts the contrast of the image by multiplying the pixel values by a specified factor. The <<+-multiplier>> parameter can be a positive or negative floating point value, with values greater than 1 increasing the contrast and values between 0 and 1 decreasing the contrast. Negative values will invert the image, effectively swapping the light and dark areas. This modifier can be used to adjust the overall brightness and contrast of an image, bringing out details or emphasizing certain areas. It can also be used in combination with other modifiers, such as resizing or cropping, to achieve various effects. |
| | The $crop/<<x>>/<<y>> modifier crops the image to a specified size by removing portions of the image outside the specified region. The <<x>> and <<y>> parameters specify the dimensions of the cropped image in pixels, with <<x>> representing the width and <<y>> representing the height. The $crop modifier can be used to remove unwanted portions of an image or to create a thumbnail of a larger image. When used in combination with other modifiers, such as resizing or rotation, the $crop modifier can be used to achieve various effects. It is also possible to specify the position of the crop area using additional parameters, such as $crop/<<x>>/<<y>>/<<width>>/<<height>>, where <<width>> and <<height>> represent the dimensions of the crop area and <<x>> and <<y>> represent the position of the top-left corner of the crop area. |
$drawText/<<x>>/<<y>>/<<text>>/<<colour>>/<<fontSize>>
| | This modifier adds text to the image at a specified position. The <<x>> and <<y>> parameters specify the coordinates of the top-left corner of the text box in pixels. The <<text>> parameter specifies the text to be added to the image. The <<colour>> parameter specifies the color of the text, which can be specified using a variety of formats, including hexadecimal values, RGB values, or color names. The <<fontSize>> parameter specifies the size of the text in points. The $drawText modifier can be used to add titles, captions, watermarks, or other textual elements to images. The position of the text can be adjusted using different values for <<x>> and <<y>>, and the appearance of the text can be customized by changing the values of the <<colour>> and <<fontSize>> parameters. The $drawText modifier also supports additional parameters for adjusting the font, style, and alignment of the text. |
| | The $enhance modifier applies an image enhancement algorithm to the image, improving the overall clarity and detail of the image. This modifier works by analyzing the image and adjusting the brightness, contrast, and sharpness of the image to bring out more detail and reduce noise. The $enhance modifier can be used to improve the quality of photographs or other images that may be slightly blurry or lacking in detail. It can also be used in combination with other modifiers, such as resizing or cropping, to achieve various effects.
|
| | The $equalize modifier applies histogram equalization to the image, adjusting the distribution of pixel values to improve the contrast and visibility of details in the image. This modifier works by mapping the pixel values of the image to a new set of values that are more evenly distributed across the available range. The result is an image with improved contrast and brightness, with details that may have been difficult to discern in the original image now more visible. The $equalize modifier can be used to improve the visibility and clarity of images that may have been poorly exposed or have uneven lighting. It can also be used in combination with other modifiers, such as resizing or cropping, to achieve various effects. However, it should be noted that the application of this modifier can sometimes lead to an exaggerated or unnatural appearance in some images, and may not always be suitable for every use case. |
| | The $flatten modifier merges all layers of the image into a single layer, resulting in a flattened image. This modifier is useful when working with images that have multiple layers, such as those that have been created in image editing software, or when combining multiple images into a single image. When multiple layers are present in an image, each layer can contain different visual elements, such as text, graphics, or effects. The $flatten modifier removes these layers and combines all the visual elements into a single layer, resulting in a simplified image that can be used for various purposes. It should be noted that applying the $flatten modifier is a destructive operation, as it permanently removes the separate layers from the image. It is therefore important to create a backup copy of the original image before using this modifier. |
| | The $flip modifier flips the image horizontally along the vertical axis, effectively creating a mirror image of the original image. This modifier is useful when working with images that need to be reversed or mirrored, such as when creating reflections or simulating a flipped object. When applied, the $flip modifier changes the orientation of the image, effectively flipping it from left to right. This can be used to create a symmetrical effect or to correct the orientation of an image that may have been scanned or captured in an inverted or mirrored state. It is important to note that the $flip modifier is a non-destructive operation, meaning that the original image is not modified in any way. Instead, a new image is created with the flipped orientation. |
| | The $flop modifier flips the image vertically along the horizontal axis, effectively creating an upside-down version of the original image. This modifier is useful when working with images that need to be reversed or mirrored, such as when creating reflections or simulating a flipped object. When applied, the $flop modifier changes the orientation of the image, effectively flipping it from top to bottom. This can be used to create a symmetrical effect or to correct the orientation of an image that may have been scanned or captured in an inverted or mirrored state. It is important to note that the $flop modifier is a non-destructive operation, meaning that the original image is not modified in any way. Instead, a new image is created with the flipped orientation. |
| | The $normalize modifier applies a normalization algorithm to the image, adjusting the contrast and brightness of the image so that the full range of pixel values is utilized. This modifier is useful for images that have uneven lighting or contrast, or images that have been poorly exposed. When applied, the $normalize modifier analyzes the distribution of pixel values in the image and adjusts them so that the darkest pixels are set to black, and the brightest pixels are set to white, with all other pixel values adjusted proportionally in between. This results in an image with improved contrast and brightness, with details that may have been difficult to discern in the original image now more visible. The $normalize modifier can be used to improve the visibility and clarity of images that may have been poorly exposed or have uneven lighting. It can also be used in combination with other modifiers, such as resizing or cropping, to achieve various effects. |
| | The $oil modifier applies an oil painting effect to the image, simulating the appearance of an oil painting by applying a brushstroke-like texture to the image. This modifier is useful for adding a creative effect to photographs or other images. When applied, the $oil modifier analyzes the image and applies a filter that simulates the appearance of brushstrokes. The level of detail in the brushstrokes is controlled by the radius parameter, with larger values resulting in a more pronounced effect. It is important to note that the $oil modifier is a non-destructive operation, meaning that the original image is not modified in any way. Instead, a new image is created with the oil painting effect applied. Additionally, it should be noted that the $oil modifier may not be suitable for all types of images, and may produce better results on certain types of images, such as landscapes or portraits. |
$resize/<<width>>/<<height>>/
<<options>>
| | m – maintain aspect ratio but width and height are minimum ! – exact size p – size in percentage a – maximum area in pixels of an image g – change dimensions only if width or height exceeds s – resizes only if both dimension are less |
$rotate/<<colour>>/<<degrees>>
| | The $rotate modifier rotates the image by a specified number of degrees, with an optional background color for the empty space created by the rotation. This modifier is useful for adjusting the orientation of images that may have been taken at an angle, or for creating special effects with rotated images. When applied, the $rotate modifier rotates the image by the specified number of degrees, either clockwise or counterclockwise. The background color parameter specifies the color to use for the empty space created by the rotation, if any. If no background color is specified, the empty space is filled with transparency. The $rotate modifier can be used to adjust the orientation of images that may have been taken at an angle, or to create special effects with rotated images. For example, rotating an image by 45 degrees and applying other modifiers, such as resizing or cropping, can create a unique and interesting visual effect. It is important to note that rotating an image can result in loss of quality or detail, particularly if the rotation angle is large. It is therefore recommended to use the $rotate modifier judiciously and to carefully consider the desired output before applying it. |
| | The $sepia modifier applies a sepia tone effect to the image, giving it an aged, vintage look. This modifier is useful for adding a nostalgic or artistic effect to photographs or other images. When applied, the $sepia modifier converts the image to a sepia tone by reducing the saturation of the image and applying a brownish-yellow color cast. The amount of sepia tone applied can be adjusted by changing the intensity of the effect. |
| | The $thumb modifier creates a thumbnail image of the original image with a specified maximum size. This modifier is useful for creating smaller versions of images for use on websites or in documents. |
| | <<type>> - Bilevel Grayscale (default) Palette PaletteMatte TrueColor TrueColorMatte ColorSeparation ColorSeparationMatte Optimize |
