33 lines
635 B
C
33 lines
635 B
C
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#ifndef FFT2D_H__
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#define FFT2D_H__
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typedef struct
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{
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int fftLen;
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arm_rfft_fast_instance_f32 fftStruct;
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float32_t *imgBuff; //输出图像
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float32_t *rowInBuff; //行输入缓冲
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float32_t *columnOutBuff; //列输出缓冲
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} FFT2D_Struct;
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//初始化
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int FFT2D_Init (FFT2D_Struct *fft2d,int len);
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//傅里叶变换，输出保存在FFT2D_Struct.imgBuff中
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void FFT2D_Rfft (FFT2D_Struct *fft2d,float32_t *img,int xsize,int ysize);
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//傅里叶逆变换，输出保存在FFT2D_Struct.imgBuff中
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void FFT2D_Rifft (FFT2D_Struct *fft2d,float32_t *img);
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//释放内存
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void FFT2D_Delete (FFT2D_Struct *fft2d);
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#endif
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