Infrared Spectrum Curve Extraction
Extract a usable FTIR curve from an image, verify the traced result visually, then export CSV for search and interpretation.
Preferably use a clear, non-distorted spectral image (800 px wide) without grid lines or peak labels.
After processing, preview the extracted curve, verify major peaks with the mouse, then download the CSV file.
Three extraction methods are available: automatic, color-based, and manual point-by-point tracing.
After successful extraction, upload a CSV for searching; otherwise, upload an image directly, which may take several hours to process.
Upload Spectrum Image
Upload a clear image with low compression noise and strong axis/curve contrast.
Curve Preview
Peak-Based Wavenumber Correction
The table below identifies one representative peak in each high, middle, and low wavenumber region. Enter the corresponding correct peak positions, then apply the correction to remap the whole spectrum.
| Band | Detected Peak Candidates (cm⁻¹) | Correct Peak (cm⁻¹) |
|---|
Each dropdown lists automatically marked peaks from that spectral region. All three regions are required, and the corrected peaks must stay in the same spectral order as the selected detected peaks.
Processing...