Perspective Transform | 555Tools — Online Tools for FPGA & Algorithm Engineers

Image AlgorithmsTool Introduction

Perspective Transform uses a 3x3 homography matrix to describe perspective effects: straight lines remain straight but parallel lines may converge at a vanishing point. In homogeneous coordinates, output is obtained by perspective divide (divide by the w component). Supports presets (corridor / document rectification / trapezoid) and automatic 4-point DLT solving.

Key Formula / Principle

Homogeneous: [X;Y;Z] = H·[x;y;1]
Perspective divide: sx = X/Z, sy = Y/Z
Bilinear interpolation over source neighbourhood

Data Processed Locally|All computations run in your browser. Images, formulas, state machine definitions, and any other input data are never sent to any server.

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