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Convert HDR to SGI
Online & free tool to convert HDR files to SGI

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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HDR

High Dynamic Range Image File

A .hdr extension file is a High Dynamic Range image format that is also known as HDRI or a Radiance HDR format. A raster image or a digital photo with dark shadows or washed out areas can be rectified using HDRsoft to enhance the color and improve the brightness level. The Multiple pictures having different exposures can also be combined to create one image with an even distribution of color with the HDR software. As compared to standard digital imaging or photographic techniques, HDR imaging uses a high technology to improve the picture quality of an image by increasing its clarity, brightness and luminosity.
SGI

Silicon Graphics Image File

A .sgi extension file saves images in the original Silicon Graphics Image format. These files are originated from the library of SGI images that were there on every Silicon Graphics machine. SGI files are also referred to as RGB, IRIS or Irix RGB., .sgi image files can be saved in 8-bit color, 16-bit or 32-bit color. GIMP has the compatibility to read and write .sgi extension files and also has a dialog box that pops up to help select the compression type. The preferred compression is RLE and while it reduces the file size, it is advisable to check once it is done to ensure that the file size is indeed reduced as sometimes the size is more than the actual file size.

Trusted conversion quality

FreeFileConvert uses tuned encoding for HDR to SGI conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload HDR files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized SGI results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent SGI audio with dependable progress tracking.

About HDR

How to open HDR files

Adobe Photoshop
Corel Paintshop Pro
Lightroom

Technical details

A .hdr extension file has three section which are the header, a resolution string and the pixel data. The header starts with an identifier that the file is an image file and is followed by lines that provide information regarding the assignments and the series…

A .hdr extension file has three section which are the header, a resolution string and the pixel data. The header starts with an identifier that the file is an image file and is followed by lines that provide information regarding the assignments and the series of programs and commands used to generate the image.

About SGI

How to open SGI files

Corel PaintShop Pro
ACD Systems Canvas
IrfanView

Technical details

SGI is a generic raster image file format that stores black and white, gray scale and color images. Images in the SGI format are generic bitmap images that have the capacity to store 8 to 32 bits per pixel. The file size of the images can be compressed with th…

SGI is a generic raster image file format that stores black and white, gray scale and color images. Images in the SGI format are generic bitmap images that have the capacity to store 8 to 32 bits per pixel. The file size of the images can be compressed with the Run-length encoding (RLE) technique. The .sgi extension files begin with a 512 byte header that is fixed and is followed by the pixel data. There is a scan-line table in case of compressed images with the compressed pixel data following the table. The scan-line offset table indicates the start of every scan line in the data of a compressed image. Lots of bit planes, alpha channel data and / or color maps may be included in the files with .sgi extension. Contrary to the top-down order followed by other formats, the pixel data in .sgi extension file follows the bottom-up order.

How to convert HDR to SGI

STEP 1

Upload your image file in the HDR format from your device, Dropbox, or Google Drive.

STEP 2

Select SGI as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted image file. Each file stays available for up to 5 downloads.

More HDR and SGI options

Convert other files to SGI

Explore popular source formats that convert beautifully into SGI.

Convert HDR to other formats

Need a different output? These conversions transform HDR into other widely used formats.

Your data, our priority

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  • Automatic file deletion shortly after conversion completes
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