Method for measuring leaf area mostly relied on computers to do image processing.An embedded measurement equipment for plant leaf area is researched and fabricated.EP2C70F896C6 of CycloneⅡ is used as the core device.Leaves image acquisition unit

image storage units

image processing unit are designed using hardware description languages Verilog.The embedded NiosⅡ soft-core processor completes the calculation of leaf area.The problem of real-time high-speed acquisition of the leaf image is solved

and it can operate offline.The experimental results show that the measurement equipment can measure leaf area of detached leaves.It can measure other leaf parameters after some improvements.