From 193cd3427108bd127e09f391f7fe51f6b62590e9 Mon Sep 17 00:00:00 2001
From: scuri <scuri>
Date: Fri, 26 Jun 2009 17:14:56 +0000
Subject: *** empty log message ***

---
 html/download/proc_fourier.cpp | 154 -----------------------------------------
 1 file changed, 154 deletions(-)
 delete mode 100644 html/download/proc_fourier.cpp

(limited to 'html/download/proc_fourier.cpp')

diff --git a/html/download/proc_fourier.cpp b/html/download/proc_fourier.cpp
deleted file mode 100644
index 48baa60..0000000
--- a/html/download/proc_fourier.cpp
+++ /dev/null
@@ -1,154 +0,0 @@
-/* IM 3 sample that calculates the Forward FFT, 
-  process in the domain frequency, 
-  and calculates the Inverse FFT.
-
-  Needs "im.lib" and "im_fftw.lib".
-
-  Usage: proc_fourier <input_file_name> <output_file_name> <output_format>
-
-    Example: proc_fourier test.tif test_proc.tif TIFF
-*/
-
-#include <im.h>
-#include <im_image.h>
-#include <im_process.h>
-#include <im_convert.h>
-#include <im_complex.h>
-
-#include <stdio.h>
-
-void FreqDomainProc(imImage* fft_image)
-{
-  // a loop for all the color planes
-  for (int d = 0; d < fft_image->depth; d++)
-  {
-    imcfloat* data = (imcfloat*)fft_image->data[d];
-
-    for (int y = 0; y < fft_image->height; y++)
-    {
-      for (int x = 0; x < fft_image->width; x++)
-      {
-        // Do something
-        // Remeber that the zero frequency is at the center
-        int offset = y * fft_image->width + x;
-
-        data[offset].imag = 0; // notice in the result that the imaginary part has an important hole.
-      }
-    }
-  }
-}
-
-void PrintError(int error)
-{
-  switch (error)
-  {
-  case IM_ERR_OPEN:
-    printf("Error Opening File.\n");
-    break;
-  case IM_ERR_MEM:
-    printf("Insuficient memory.\n");
-    break;
-  case IM_ERR_ACCESS:
-    printf("Error Accessing File.\n");
-    break;
-  case IM_ERR_DATA:
-    printf("Image type not Suported.\n");
-    break;
-  case IM_ERR_FORMAT:
-    printf("Invalid Format.\n");
-    break;
-  case IM_ERR_COMPRESS:
-    printf("Invalid or unsupported compression.\n");
-    break;
-  default:
-    printf("Unknown Error.\n");
-  }
-}
-
-imImage* LoadImage(const char* file_name)
-{
-  int error;
-  imFile* ifile = imFileOpen(file_name, &error);
-  if (!ifile) 
-  {
-    PrintError(error);
-    return 0;
-  }
-  
-  imImage* image = imFileLoadImage(ifile, 0, &error);  // load the first image in the file.
-  if (!image)
-    PrintError(error);
-    
-  imFileClose(ifile);  
-
-  return image;
-}
-
-void SaveImage(imImage* image, const char* file_name, const char* format)
-{
-  int error;
-  imFile* ifile = imFileNew(file_name, format, &error);
-  if (!ifile)
-  {
-    PrintError(error);
-    return;
-  }
-  
-  error = imFileSaveImage(ifile, image);
-  if (error != IM_ERR_NONE)
-    PrintError(error);
-
-  imFileClose(ifile);  
-}
-
-int main(int argc, char* argv[])
-{
-  if (argc < 4)
-  {
-    printf("Invalid number of arguments.\n");
-    return 0;
-  }
-
-  // Loads the image from file
-  imImage* image = LoadImage(argv[1]);
-  if (!image)
-    return 0;
-
-  // Creates a new image similar of the original but with complex data type.
-  // FFTW does not requires that the image size is a power of 2.
-  imImage* fft_image = imImageCreate(image->width, image->height, image->color_space, IM_CFLOAT);
-  if (!image)
-    return 0;
-
-  // Forward FFT
-  imProcessFFTW(image, fft_image);
-
-  // The user processing
-  FreqDomainProc(fft_image);
-
-  // The inverse is still a complex image
-  imImage* ifft_image = imImageClone(fft_image);
-  if (!image)
-    return 0;
-
-  // Inverse FFT
-  imProcessIFFTW(fft_image, ifft_image);
-
-  // Converts the complex image to the same type of the original image 
-  // so we can reuse its buffer
-  // (usually will be a bitmap image so we can also view the result)
-  if (image->data_type != IM_CFLOAT)
-  {
-    // This function will scan for min and max values before converting the data type
-    // There wiil be no gamma conversion, use abssolute values, and only the real part will be considered.
-    imConvertDataType(ifft_image, image, IM_CPX_REAL, IM_GAMMA_LINEAR, 1, IM_CAST_MINMAX);
-  }
-
-  SaveImage(image, argv[2], argv[3]);
-
-  imImageDestroy(image);
-  imImageDestroy(fft_image);
-  imImageDestroy(ifft_image);
-
-  return 1;
-}
-- 
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