CN National Computer Rank Examination 144x192 pixels Photo Requirements Guide - Official Guidelines

Requirements

• Image dimensions: exactly 144 × 192 pixels (width × height) with a 3:4 aspect ratio
• File format: JPEG (.jpg) only, saved in baseline format without progressive encoding
• Color mode: 24-bit true color (sRGB) with no indexed or CMYK palettes
• File size: must not exceed 20 KB (20,480 bytes) after final compression
• Background: solid light-colored (white or very light grey/blue), uniform with no shadows or patterns
• Head position: centered both horizontally and vertically, with the face occupying 70–80 % of photo height
• Head size: measured from chin to crown between 134 px and 154 px (70–80 % of 192 px)
• Facial expression: neutral (mouth closed), eyes open and clearly visible, looking directly at the camera
• Glasses: allowed only if worn daily, frames must be thin, lenses clear, no glare or reflections, eyes fully visible
• Headwear: not permitted except for religious reasons, must not obscure hairline, forehead, or facial features
• Attire: everyday clothing without logos or uniforms, avoid white tops to contrast background, no accessories covering face
• Photo recency: taken within the last 6 months, showing current appearance (no outdated styles or filters)
• Retouching limits: only minor color/contrast adjustments; no altering facial features, removing blemishes, or applying filters
• File naming: use your exam registration ID (no spaces or special characters) followed by “.jpg” (e.g., jpg)

Step-by-Step Process

• First step: detailed explanation

Prepare and capture your head-and-shoulders portrait to meet the CN National Computer Rank Examination 144×192 pixel requirements. Use a high-resolution digital camera or smartphone set to its maximum image quality and a neutral, light-colored background. Position the subject so the face is centered, eyes looking directly at the camera, with a neutral expression and mouth closed. Ensure even, shadow-free lighting from both sides. Maintain a forehead-to-chin height that will later scale to 28–33 mm in the final 144×192 frame. Wear plain, dark-colored clothing with no uniforms or head coverings (unless religiously required), and remove glasses or any accessories that obscure facial features.

• Second step: what to do and why

Transfer the image to your computer and open it in a reliable photo editor (e.g., Adobe Photoshop, GIMP). Crop the canvas to 144 pixels wide by 192 pixels tall exactly. Verify that the head—from chin to crown—measures 28–33 mm when printed at 300 dpi (for on-screen verification set rulers to pixels: head height ≈ 350–420 pixels). Save the file as a high-quality JPEG (.jpg) with minimal compression to keep artifacts below visible threshold and file size under 50 KB. Name the file according to exam guidelines (e.g., “CandidateID_Name.jpg”). Finally, run the official CN photo-validation tool to confirm compliance before uploading to the examination portal—this prevents automatic rejections and ensures your photo will be accepted.

Tips and Best Practices

• Exact Dimensions: Always crop or resize your image to precisely 144×192 px in a trusted editor to prevent automatic scaling or padding that distorts facial proportions and triggers software rejection.
• Optimal File Format: Save as a high-quality JPEG or PNG without excessive compression to avoid artifacts around hairlines or background edges, which can cause scan-inaccuracies and retake requests.
• Plain Background: Use a uniformly light-colored, glare-free backdrop (white or pale blue) to eliminate shadows or gradients that exam-scanning algorithms often flag as non-compliant.
• Proper Head Placement: Center your neutral-expression face so it occupies about 70–80% of the frame height, with eyes on the horizontal midline, to ensure automated detection aligns with the template.
• Recent & Authentic Appearance: Submit a photo taken within the last six months, free from hats, heavy makeup, filters or glasses glare, to match your current look and avoid identity‐verification delays.

Conclusion

In conclusion, the CN National Computer Rank Examination’s 144×192 pixel photo requirements center on precision, consistency and clarity. Adhering strictly to these specifications will prevent delays or rejections:

• Image dimensions: exactly 144 pixels wide × 192 pixels tall (aspect ratio 3:4)
• File format & size: high-quality JPEG (.jpg), 8-bit color, max 20 KB without visible compression artifacts
• Background: solid white (#FFFFFF), evenly lit with no shadows or patterns
• Head positioning: centered, occupying ~70% of image height, with eyes located 64–80 pixels from the bottom edge
• Facial expression & gaze: neutral expression, mouth closed, eyes open and directed straight at the camera
• Attire & accessories: plain, non-reflective clothing; no hats or head coverings except for documented religious reasons; no tinted or obstructive eyewear
• Image quality: sharp focus, natural skin tones, balanced contrast and brightness

By following each requirement precisely—with attention to dimensions, lighting, background and expression—you ensure your examination registration photo meets official standards and avoids any processing setbacks.