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Titanium native mobile image transformation functions including the ability to scale, crop, and compress images.

• API FAQ:
• 📝 Description
• 🚀 Getting Started
• Accessing the @titanium/imagefactory Module
  • Methods
    • imageWithRotation(blob, options)
      • Arguments
    • imageWithAlpha(blob, options)
      • Arguments
    • imageWithTransparentBorder(blob, options)
      • Arguments
    • imageWithRoundedCorner(blob, options)
      • Arguments
    • imageAsThumbnail(blob, options)
      • Arguments
    • imageAsResized(blob, options)
      • Arguments
    • imageAsCropped(blob, options)
      • Arguments
    • imageTransform(blob, options)
      • Arguments
    • compress(blob, quality)
      • Arguments
• ✨Features
• 📚Learn More
• 📣 Feedback
• ©️ Legal

Ti.ImageFactory provides a set of image transformation functions including the ability to scale, crop, and compress images. Additionally, this module offers the functionality of adding alpha channels and transparent borders. This is a repackaging of the compiled iOS and Android modules for Ti.ImageFactory to allow for installation via npm.

1. Install @titanium/imagefactory in root of project

npm install @titanium/imagefactory

To access this module from JavaScript, you would do the following:

const imageFactory = require('@titanium/imagefactory');

Creates a new image by creating a copy of the given image that is rotated.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • degrees[int]: The degrees to rotate the image

Creates a new image by creating a copy of the given image, adding an alpha channel if it doesn't already have one.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • iOS: Currently there are no properties for this method -- specify an empty dictionary
  • Android: format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG)
  • Android: quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7)

Creates a new image by creating a copy of the given image, adding a transparent border of the given size around its edges. The size of the image will be expanded by the specified border size.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • borderSize[int]: The size of the border (default: 1)
  • Android: format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG)
  • Android: quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7)

Creates a new image by creating a copy of the given image with rounded corners.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • borderSize[int]: The size of the border (default: 1)
  • cornerRadius[int]: The radius of the corner edges (default: 0)
  • Android: format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG).
  • Android: quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7).

Creates a new image by creating a copy of the given image that is squared to the thumbnail size.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • size[int]: The size of the thumbnail (default: 48)
  • borderSize[int]: The size of the border (default: 1)
  • cornerRadius[int]: The radius of the corner edges (default:0)
  • iOS: quality[int]: The interpolation quality. One of the following constants (default: imagefactory.QUALITY_HIGH)
    • imagefactory.QUALITY_DEFAULT
    • imagefactory.QUALITY_NONE
    • imagefactory.QUALITY_LOW
    • imagefactory.QUALITY_MEDIUM
    • imagefactory.QUALITY_HIGH
  • Android: quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7)
  • Android: dither[boolean]: Indicates if dithering should be applied while scaling. May provide better quality (default: true)
  • Android: format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG)

Creates a new image by creating a copy of the given image that is rescaled to the specified size.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • width[int]: The width of the new image (default: image width)
  • height[int]: The height of the new image (default: image height)
  • iOS: hires[boolean]: Create a hires image (for Retina displays only)
  • iOS: quality[int]: The interpolation quality. One of the following constants (default: imagefactory.QUALITY_HIGH)
    • imagefactory.QUALITY_DEFAULT
    • imagefactory.QUALITY_NONE
    • imagefactory.QUALITY_LOW
    • imagefactory.QUALITY_MEDIUM
    • imagefactory.QUALITY_HIGH
  • Android. format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG)
  • quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7)

Creates a new image by creating a copy of the given image that is cropped to the specified bounds.

• Image blob[blob]: Image to transform
• Options[dictionary]: A dictionary specifying the options for the transformation
  • width[int]: The width of the new image (default: image width)
  • height[int]: The height of the new image (default: image height)
  • x[int]: The x-coordinate of the upper-left corner of the bounds (default: image center - width / 2)
  • y[int]: The y-coordinate of the upper-left corner of the bounds (default: image center - height / 2)
  • Android: format [int]: The output format of the image: either ImageFactory.PNG or ImageFactory.JPEG (default: ImageFactory.JPEG)
  • Android: quality[float]: The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 0.7)

Creates a new image by applying a sequence of transformations to the image.

• Image blob[blob]: Image to transform
• Transform[dictionary]: A sequence of transform specifications. Transforms are listed as additional parameters to the function and are applied in the order specified. Each transform is a dictionary with the options described above for each transform along with an additional 'type' property included with each dictionary of transform options.
  • type[int]: The identifier of the transform to apply. One of the following constants
    • imagefactory.TRANSFORM_CROP
    • imagefactory.TRANSFORM_RESIZE
    • imagefactory.TRANSFORM_THUMBNAIL
    • imagefactory.TRANSFORM_ROUNDEDCORNER
    • imagefactory.TRANSFORM_TRANSPARENTBORDER
    • imagefactory.TRANSFORM_ALPHA
  • options as described in the above transforms

Creates a new image by creating a copy of the given image and applying the specified compression quality.

• Image blob[blob]: Image to compress
• Compression Quality[float]; The quality of the resulting JPEG image, expressed as a value from 0.0 to 1.0. The value 0.0 represents the maximum compression (or lowest quality) while the value 1.0 represents the least compression (or best quality). (default: 1.0)

iOS: ti.imagefactory 1.3.0 Android: ti.imagefactory 4.0.0

• Scale images
• Crop images
• Compress images
• Add alpha channel to images
• Add transparent borders to images

• Ti.ImageFactory GitHub Repo

Have an idea or a comment? Join in the conversation here!

Modules are licensed under Apache 2.0 from https://github.com/appcelerator-modules/ti.imagefactory

Alloy is developed by Appcelerator and the community and is Copyright © 2012-Present by Appcelerator, Inc. All Rights Reserved.

Alloy is made available under the Apache Public License, version 2. See their license file for more information.

Appcelerator is a registered trademark of Appcelerator, Inc. Titanium is a registered trademark of Appcelerator, Inc. Please see the LEGAL information about using trademarks, privacy policy, terms of usage and other legal information at http://www.appcelerator.com/legal.