By default, the center of the image is kept in the crop, but this is not always ideal. Some of the cropping modes keep only a certain part of the original image in the resulting image. However, there is no default cropping mode when using the Cloudinary SDK helper methods (see Embedding images in web pages using SDKs), so a cropping mode must be explicitly set. When creating dynamic delivery URLs, if you specify only the width and/or height parameters, but no cropping mode (no c_), the image is scaled to the new dimensions by default. Performs smart cropping, using the Imagga Crop and Scale add-on. Performs smart scaling, using the Imagga Crop and Scale add-on.
These modes adjust the size and/or crop the image using an add-on. Same as pad, but only scales up the image. Same as pad, but only scales down the image. Resizes the image to fit inside the bounding box specified by the dimensions, maintaining the aspect ratio, and applies padding if the resized image does not fill the whole area. Same as fit, but only scales up the image. Same as fit, but only scales down the image. Resizes the image to fit inside the bounding box specified by the dimensions, maintaining the aspect ratio. Resizes the image to the specified dimensions without necessarily retaining the original aspect ratio. These modes adjust the size of the delivered image without cropping out any elements of the original image. Supported only with automatic cropping.Įxtracts a region of the specified dimensions from the original image without first resizing it.Ĭreates a thumbnail of the image with the specified dimensions, based on a specified gravity. Same as fill, but avoids excessive cropping by adding padding when needed. Same as fill, but only scales down the image. Resizes the image to fill the specified dimensions without distortion. If the requested dimensions have a different aspect ratio than the original, these modes crop out part of the image. Cloudinary supports the following image resize/crop modes: Crop/resize mode Use the c (crop/resize) parameter for selecting the crop/resize mode.
#Crop in fast image resizer how to
When changing the dimensions of an uploaded image by setting the image's height, width, and/or aspect ratio, you need to decide how to resize or crop the image to fit into the requested size. If you want to resize only one dimension, and keep the other dimension at its original size (rather than the automatic determination described above), you can specify only width or only height, and add the fl_ignore_aspect_ratio flag qualifier. If ar < 1, the original height is maintained, and the width is cropped accordingly. If you provide only the aspect ratio: If ar > 1, the original width is maintained and the height is cropped to deliver the requested ratio.
For example, if your original asset is 400*600, then specifying c_crop,w_200 is the same as specifying c_crop,w_200,h_300. If you provide only width or only height, then the other dimension is automatically calculated to deliver the original aspect ratio.However, in rare cases, you may choose to specify only one of these 3 resize qualifiers, and Cloudinary will automatically determine the missing dimension as follows: In most cases, you will specify both width and height or width/height along with an aspect ratio to define the exact required dimensions. a decimal value representing the ratio of the width divided by the height (e.g., ar_1.33 or ar_2.5).a:b where a signifies the relative width and b the relative height (e.g., ar_4:3 or ar_16:9).Aspect ratios are specified using the ar (aspect ratio) parameter, as follows:.This may be useful when applying chained transformations or setting the dimensions of an overlay. For example, w_iw sets the width to the same value as the original width of the image. Using ih or iw as values sets the dimension to the initial height or initial width of the original image respectively.For example, w_0.5 sets the width to half the original width. Using a decimal value for width or height sets the new dimension relative to the original dimension.For example, w_150 sets the width to exactly 150 pixels. Using an integer value for w (width) or h (height) sets the new dimension to that number in pixels.You can set the target dimensions of your resized image by specifying width, height, and/or the target aspect ratio as qualifiers of your resize transformation. To help you learn about the different cropping and resizing modes, try out the interactive demo. User-defined variables and arithmetic transformations.
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