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Convert DNG to JPEG via Ruby Cloud API

Transform DNG into JPEG using native Ruby Cloud APIs without needing any image editor or 3rd-party libraries.

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How to Convert DNG to JPEG Using Ruby Cloud API

Aspose.Imaging.Cloud for Ruby API which is a feature-rich, powerful and easy to use image manipulation and conversion Cloud API for Ruby platform. You can download its latest version directly from rubygems.org or install it from gem command line.

Command Prompt


> gem install aspose_imaging_cloud

Steps to Convert DNG to JPEG via Ruby Cloud API

Developers can easily load & convert DNG files to JPEG in just a few lines of code.

  • Load DNG file as stream
  • Create & set the instance of CreateConvertedImageRequest
  • Call the CreateConvertedImage method
  • Get converted image from response stream

System Requirements

Aspose.Imaging Cloud for Ruby is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Ruby version >= 2.5.1
 

Convert DNG to JPEG - Cloud

require 'fileutils'
require 'aspose-imaging-cloud'
IMAGE_FILE_NAME= 'example_image.dng';
IMAGES_FOLDER = 'ExampleImages';
CLOUD_FOLDER = 'CloudImages';
OUTPUT_FOLDER = 'Output';
# Get ClientId and ClientSecret from https://dashboard.aspose.cloud/
# or use on-premise version (https://docs.aspose.cloud/imaging/getting-started/how-to-run-docker-container/)
imaging_api = AsposeImagingCloud::ImagingApi.new(client_secret, client_id, 'https://api.aspose.cloud')
# Convert the image from cloud storage
def convert_image_from_storage
input_image = File.join(IMAGES_FOLDER, IMAGE_FILE_NAME)
upload_file_request = AsposeImagingCloud::UploadFileRequest.new(File.join(CLOUD_FOLDER, IMAGE_FILE_NAME), input_image)
result = self.imaging_api.upload_file(upload_file_request)
if result.errors.any?
puts('Uploading errors count: ' + result.errors.size.to_s)
# Please refer to
# https://docs.aspose.cloud/imaging/supported-file-formats/#convert
# for possible output formats
format = 'jpeg' # Resulting image format
folder = CLOUD_FOLDER # Input file is saved at the desired folder in the storage
storage = nil # We are using default Cloud Storage
request = AsposeImagingCloud::ConvertImageRequest.new(IMAGE_FILE_NAME, format, folder, storage)
converted_image = imaging_api.convert_image(request)
# Save the image file to output folder
filename_part = File.basename(IMAGE_FILE_NAME, ".*")
image_name = filename_part + '.' + 'jpeg'
path = File.absolute_path(File.join(OUTPUT_FOLDER, image_name))
File.write(path, converted_image)
end
# Convert an image. Image data is passed in a request stream
def create_converted_image_from_request
# Please refer to
# https://docs.aspose.cloud/imaging/supported-file-formats/#convert
# for possible output formats
format = 'jpeg' # Resulting image format
storage = nil # We are using default Cloud Storage
out_path = nil # Path to updated file (if this is empty, response contains streamed image)
input_stream = File.open(File.join(IMAGES_FOLDER, IMAGE_FILE_NAME), 'r')
request = AsposeImagingCloud::CreateConvertedImageRequest.new(input_stream, format, out_path, storage)
converted_image = imaging_api.create_converted_image(request)
# Save the image file to output folder
filename_part = File.basename(IMAGE_FILE_NAME, ".*")
image_name = filename_part + '.' + 'jpeg'
path = File.absolute_path(File.join(OUTPUT_FOLDER, image_name))
File.write(path, converted_image)
end
view raw dng-to-jpeg.rb hosted with ❤ by GitHub
 

About Aspose.Imaging Cloud API for Ruby

Aspose.Imaging Cloud API is an image processing solution to process images (photos) within your cloud or web applications. It offers: cross-platform Image processing, including but not limited to conversions between various image formats (including uniform multi-page or multi-frame image processing), transformations (resize, crop, flip&rotate, grayscale, adjust), advanced image manipulation features (filtering, deskewing), AI features (i.e. object detection and reverse image search). It’s a Cloud API and does not depend on any software for image operations. One can easily add high-performance image conversion features with Cloud APIs within projects. Flexible integrations options including SDKs for various languages (Python, Ruby, .NET, Java, NodeJS, PHP) and the use of the REST API allow to make the integration easy.

Convert DNGs via Online App

Convert DNG to JPEG documents by visiting our Live Demos website. The live demo has the following benefits

  No need to download or setup anything
  No need to write any code
  Just upload your DNG files and hit "Convert" button
  Instantly get the download link for the resultant file

DNG What is DNG File Format

DNG is a digital camera image format used for the storage of raw files. It has been developed by Adobe in September 2004. It was basically developed for digital photography. DNG is an extension of TIFF/EP standard format and uses metadata significantly. In order to manipulate raw data from digital cameras with ease of flexibility and artistic control, photographers opt camera raw files. JPEG and TIFF formats store images that are processed by the camera, therefore not much room for alteration is available in such formats.

Read More

JPEG What is JPEG File Format

A JPEG is a type of image format that is saved using the method of lossy compression. The output image, as result of compression, is a trade-off between storage size and image quality. Users can adjust the compression level to achieve the desired quality level while at the same time reduce the storage size. Image quality is negligibly affected if 10:1 compression is applied to the image. The higher the compression value, the higher the degradation in image quality.

Read More

Other Supported Conversions

Using Ruby Cloud API, one can easily convert different formats including.

BMP (Bitmap Picture)
GIF (Graphical Interchange Format)
JPG (Joint Photographic Experts Group)
JPEG (Joint Photographic Experts Group)
JPEG2000 (JPEG 2000)
PSD (Photoshop Document)
TIFF (Tagged Image Format)
WEBP (Raster Web Image)
PNG (Portable Network Graphics)
DICOM (Digital Imaging & Communications)
PDF (Portable Document Format (PDF))
APNG (Animated Portable Network Graphics)
TGA (Targa Graphic)