Convert MHA to JPG Online
Convert MHA (MetaImage Archive) medical volume files to standard JPG images. Unlike the two-file MHD format, MHA combines header and data into a single portable file — making it the preferred export format from ITK-SNAP, 3D Slicer, and SimpleITK scripts. Our converter extracts 2D slices from MHA volumes and produces JPG images viewable on any device.
Træk din fil herhen
DICOM (.dcm), NIfTI (.nii, .nii.gz), NRRD (.nrrd), MHA (.mha)
Max file size: 200 MB • Processed locally
Why Convert MHA to JPG?
MHA (MetaImage Archive) bundles the volume header and binary pixel data into a single self-contained file, making it convenient for data transfer between research labs and institutions. However, this convenience does not extend to viewing — MHA files still require ITK-based software to open. Converting MHA to JPG eliminates this requirement, producing images that can be viewed on any computer, phone, or tablet using built-in photo viewers.
ITK-SNAP, one of the most popular tools for manual medical image segmentation, exports segmentation results and loaded volumes as MHA files. When segmentation labels, corrected volumes, or annotated imaging data need to be shared with clinical colleagues or included in case reports, JPG conversion provides the quickest path to a universally accessible format.
SimpleITK scripts used in automated processing pipelines commonly write output volumes as MHA files. For pipeline monitoring, batch processing verification, and automated QC reporting, converting MHA outputs to JPG enables visual inspection without requiring Python/ITK to be installed on the review workstation.
How to Convert MHA to JPG
- Upload your .mha file from ITK-SNAP, 3D Slicer, or SimpleITK pipeline.
- The converter reads the embedded header and extracts image slices automatically.
- Download JPG images of individual slices — no additional files needed.
Key Features
- Single-file MHA to JPG conversion — no companion files needed
- Compatible with ITK-SNAP, 3D Slicer, and SimpleITK exports
- Automatic compression detection and handling
- Support for all MetaImage data types and dimensions
- Ideal for quick visual verification of pipeline outputs
- Free online tool — no ITK installation required
- Secure processing with encrypted uploads and auto-deletion
Frequently Asked Questions
What is the difference between MHA and MHD?
MHA (MetaImage Archive) combines header and data in a single file, making it more portable. MHD (MetaImage Header) stores them separately as .mhd header + .raw data files. Both contain the same information and are interchangeable in ITK/VTK, but MHA is easier to share since it is a single file.
Do I need to upload additional files with MHA?
No. Unlike MHD which requires a separate .raw file, MHA is self-contained. Simply upload the single .mha file and the converter will extract everything it needs from the embedded header and data sections.
Can I convert ITK-SNAP segmentation exports?
Yes. ITK-SNAP exports segmentation label maps as MHA files. These are converted to grayscale JPG images where each label value maps to a distinct intensity level. The output provides a quick visual verification of your segmentation work.
Is MHA compression supported?
Yes. MHA files can contain either uncompressed or zlib-compressed data. Our converter automatically detects and handles both compression modes based on the CompressedData flag in the embedded header.