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Projection Blend Canvas Calculator
Calculate the unique horizontal canvas width and overlap budget for a row of identical projectors.
Projector width (px): 320–16384; Projector count: 2–16; Overlap per seam (px): 0–8192
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Projection Blend Canvas Calculator
Projector width (px): 1920 Projector count: 3 Overlap per seam (px): 192
- Canvas width (px)
- 5376.000000
- Overlap per projector (%)
- 10.000000
- Horizontal step (px)
- 1728.000000
- Total repeated width (px)
- 384.000000
Enter the horizontal output width of each identical projector, the number of projectors in one row and the overlap at every adjacent seam. All inputs use whole pixels. For width W, count N and overlap O, the unique canvas width is N × W − (N − 1) × O. The horizontal step between projector origins is W − O; the overlap percentage is 100 × O / W. Total repeated width is (N − 1) × O. Three 1920-pixel projectors with 192 pixels at each seam give a 5376-pixel canvas, a 1728-pixel step and 384 repeated pixels. The model accepts 320–16384 pixels per projector, 2–16 projectors and 0–8192 overlap pixels. Overlap must not exceed half the projector width: this keeps the row within a simple adjacent-pair layout. Zero overlap is a valid butt-joined planning case, not a soft-edge blend. Pixel counts remain exact integers; percentages display six decimals. Use the result to brief content creators and discuss canvas settings with the media-server operator. It is a horizontal geometry budget, not a projector preset or a guarantee of a seamless image. The model assumes identical widths, equal overlaps, one straight row and no warping, rotation, scaling or cropping. It does not calculate brightness, blend curves, black levels, throw distance or physical screen size. Check the supported canvas limits and coordinate conventions of the actual hardware and software. Copy, download or print inputs, results and these assumptions together. Empty, fractional or invalid pixel inputs remove the previous result.
Methodology
How it works
Enter the horizontal output width of each identical projector, the number of projectors in one row and the overlap at every adjacent seam. All inputs use whole pixels. For width W, count N and overlap O, the unique canvas width is N × W − (N − 1) × O. The horizontal step between projector origins is W − O; the overlap percentage is 100 × O / W. Total repeated width is (N − 1) × O. Three 1920-pixel projectors with 192 pixels at each seam give a 5376-pixel canvas, a 1728-pixel step and 384 repeated pixels. The model accepts 320–16384 pixels per projector, 2–16 projectors and 0–8192 overlap pixels. Overlap must not exceed half the projector width: this keeps the row within a simple adjacent-pair layout. Zero overlap is a valid butt-joined planning case, not a soft-edge blend. Pixel counts remain exact integers; percentages display six decimals. Use the result to brief content creators and discuss canvas settings with the media-server operator. It is a horizontal geometry budget, not a projector preset or a guarantee of a seamless image. The model assumes identical widths, equal overlaps, one straight row and no warping, rotation, scaling or cropping. It does not calculate brightness, blend curves, black levels, throw distance or physical screen size. Check the supported canvas limits and coordinate conventions of the actual hardware and software. Copy, download or print inputs, results and these assumptions together. Empty, fractional or invalid pixel inputs remove the previous result.
Method and assumptions documented by Techrider.live
2026-10-22
Frequently asked questions
Is 10% overlap required?
No. The 192-pixel example is 10% of 1920 pixels; select overlap for your actual projection and blending system.
Can I use different projector sizes or multiple rows?
No. This model covers one row of identical widths with equal adjacent overlaps, without warping or scaling.