Document Scanning Quality Requirements
Guidelines for high-quality document images to ensure accurate scanning. Key recommendations include lighting, focus & resolution, angles & framing, visibility, cleanliness.
Last updated
Guidelines for high-quality document images to ensure accurate scanning. Key recommendations include lighting, focus & resolution, angles & framing, visibility, cleanliness.
Last updated
Note: While advanced, this system remains subject to fundamental physical limitations.
Good lighting is essential for accurate OCR and document recognition. Avoid capturing images in overly dark or bright environments, as this can interfere with processing. Natural light or evenly distributed artificial light is ideal.
Reflections and glare reduce recognition accuracy. Do not use your phone’s flash, and avoid shiny surfaces or lighting angles that create hotspots on the document.
A blurry photo can make it impossible to extract data. Make sure your camera is steady and the document is in clear focus before capturing. Hold the device still and allow time for autofocus to settle.
Always photograph the document from a top-down, straight-on angle. Tilting the device or capturing at an angle may result in perspective distortion, making the document harder to process.
Maintain balanced margins around the document:
If the frame is too tight, parts of the document may be cropped.
If too wide, the document may appear too small, affecting clarity.
Center the document and make sure all edges are visible.
High contrast between the text and the background helps improve recognition. Avoid backgrounds that are too dark or too light, and ensure no visual obstructions are covering any part of the text.
Capture images at the highest possible resolution supported by your device. Low-resolution images lack the detail needed for accurate character recognition, especially for small fonts or fine print.
Make sure no other objects (like fingers, pens, or nearby clutter) appear in the frame. These can block parts of the document and interfere with processing.
Ensure the document is not folded, curved, or wrinkled when taking the picture. A flat, undistorted document ensures that all data can be captured and interpreted accurately.
