c# itextsharp pdf page to image : Convert protected pdf to word document SDK Library service wpf asp.net winforms dnn cips2ed46-part127

F.5. CODE LISTINGS FOR CHAPTER 5
439
}
} /* ends if detect_type == PREWITT */
if(detect_type == SOBEL){
for(i=0; i<3; i++){
for(j=0; j<3; j++){
mask_0[i][j] = sobel_mask_0[i][j];
mask_1[i][j] = sobel_mask_1[i][j];
mask_2[i][j] = sobel_mask_2[i][j];
mask_3[i][j] = sobel_mask_3[i][j];
mask_4[i][j] = sobel_mask_4[i][j];
mask_5[i][j] = sobel_mask_5[i][j];
mask_6[i][j] = sobel_mask_6[i][j];
mask_7[i][j] = sobel_mask_7[i][j];
}
}
} /* ends if detect_type == SOBEL */
} /* ends setup_masks */
/***********************************************
*
*
fix_edges(...
*
*
This function fixes the edges of an image
*
array after convolution was performed.
*
It copies the points near the edge of the
*
array out to the edge of the array.
*
***********************************************/
fix_edges(im, w, rows, cols)
int
w;
short **im;
long rows, cols;
{
int i, j;
printf("\nFIX> rows=%ld cols=%ld w=%d",rows,cols,w);
Convert protected pdf to word document - C# PDF Password Library: add, remove, edit PDF file password in C#.net, ASP.NET, MVC, WinForms, WPF
Help to Improve the Security of Your PDF Document by Setting Password
add password to pdf file without acrobat; open password protected pdf
Convert protected pdf to word document - VB.NET PDF Password Library: add, remove, edit PDF file password in vb.net, ASP.NET, MVC, WinForms, WPF
Help to Improve the Security of Your PDF Document by Setting Password
pdf open password; pdf password online
440
APPENDIX F. SOURCE CODE LISTINGS
/* four corners */
for(i=w; i>0; i--){
im[i-1][i-1] = im[i][i];
im[i-1][cols-(i-1)] = im[i][cols-1-(i-1)];
im[rows-(i-1)][i-1] = im[rows-1-(i-1)][i];
im[rows-(i-1)][cols-(i-1)] = im[rows-1-(i-1)][cols-1-(i-1)];
} /* ends four corners loop */
for(i=0; i<rows; i++){
for(j=w; j>0; j--){
im[i][j-1] = im[i][j];
im[i][cols-j] = im[i][cols-j-1];
}
}
for(j=0; j<cols; j++){
for(i=w; i>0; i--){
im[i-1][j] = im[i][j];
im[rows-i][j] = im[rows-i-1][j];
}
}
} /* ends fix_edges */
Listing 5.1 - The Edge Detector Subroutines
F.6 Code Listings for Chapter 6
#include "cips.h"
short g7[7][7] = {
{ 0, 0, -1, -1, -1, 0, 0},
{ 0, -2, -3, -3, -3, -2, 0},
{ -1, -3, 5, 5, 5, -3, -1},
{ -1, -3, 5, 16, 5, -3, -1},
{ -1, -3, 5, 5, 5, -3, -1},
{ 0, -2, -3, -3, -3, -2, 0},
{ 0, 0, -1, -1, -1, 0, 0}};
short g9[9][9] = {
{ 0, 0, 0, -1, -1, -1, 0, 0, 0},
Online Convert PDF file to Word. Best free online PDF Conversion
Using this PDF to Word converting library control, .NET developers can quickly convert PDF document to Word file using Visual C# code.
password on pdf file; add password to pdf file
VB.NET PDF Convert to Word SDK: Convert PDF to Word library in vb.
Supports transfer from password protected PDF. control is a professional and mature .NET solution which aims to convert PDF document to Word (DOC / DOCX
create password protected pdf from word; advanced pdf password remover
F.6. CODE LISTINGS FOR CHAPTER 6
441
{ 0, -2, -3, -3, -3, -3, -3, -2, 0},
{ 0, -3, -2, -1, -1, -1, -2, -3, 0},
{ -1, -3, -1,
9, 9, 9, -1, -3, -1},
{ -1, -3, -1,
9, 19, 9, -1, -3, -1},
{ -1, -3, -1,
9, 9, 9, -1, -3, -1},
{ 0, -3, -2, -1, -1, -1, -2, -3, 0},
{ 0, -2, -3, -3, -3, -3, -3, -2, 0},
{ 0, 0, 0, -1, -1, -1, 0, 0, 0}};
short e_mask[3][3] = {
{-9, 0, -9},
{ 0, 36, 0},
{-9, 0, -9} };
short contrast[3][3] = {
{ 1, 1, 1},
{ 1, 1, 1},
{ 1, 1, 1}};
short enhance_mask[3][3] = {
{-1, 0, -1},
{ 0, 4, 0},
{-1, 0, -1} };
/**************************************************
*
*
homogeneity(...
*
*
This function performs edge detection by looking
*
for the absence of an edge. The center of a
*
3x3 area is replaced by the absolute value of
*
the max difference between the center point
*
and its 8 neighbors.
*
***************************************************/
homogeneity(the_image, out_image,
rows, cols, bits_per_pixel,
threshold, high)
int
high, threshold;
short **the_image, **out_image;
C# PDF Convert to Word SDK: Convert PDF to Word library in C#.net
Convert PDF to multiple MS Word formats such as .doc Password protected PDF file can be printed to Word for Using this PDF to Word converting library control
break pdf password; password on pdf
Online Convert Word to PDF file. Best free online export docx, doc
to make it as easy as possible to convert your doc your C#.NET project, Microsoft Office like Word, Excel, and PowerPoint can be converted to PDF document.
break password on pdf; reader save pdf with password
442
APPENDIX F. SOURCE CODE LISTINGS
long
rows, cols, bits_per_pixel;
{
int a, b, absdiff, absmax, diff, i, j,
length, max, max_diff, new_hi, new_low, width;
new_hi = 250;
new_low = 16;
if(bits_per_pixel == 4){
new_hi = 10;
new_low = 3;
}
max = 255;
if(bits_per_pixel == 4)
max = 16;
for(i=0; i<rows; i++){
for(j=0; j<cols; j++){
out_image[i][j] = 0;
}
}
for(i=1; i<rows-1; i++){
if( (i%10) == 0) printf("%4d", i);
for(j=1; j<cols-1; j++){
max_diff = 0;
for(a=-1; a<=1; a++){
for(b=-1; b<=1; b++){
diff = the_image[i][j] -
the_image[i+a][j+b];
absdiff = abs(diff);
if(absdiff > max_diff)
max_diff = absdiff;
} /* ends loop over b */
} /* ends loop over a */
out_image[i][j] = max_diff;
} /* ends loop over j */
} /* ends loop over i */
Online Convert PDF file to Word. Best free online PDF Conversion
We try to make it as easy as possible to convert your Tiff/Tif files In addition to PDF to Tiff conversion, our .NET PDF document imaging SDK also supports
pdf document password; pdf password recovery
VB.NET PDF Convert to Jpeg SDK: Convert PDF to JPEG images in vb.
VB.NET How-to, VB.NET PDF, VB.NET Word, VB.NET Excel, VB.NET PowerPoint, VB.NET Tiff, VB.NET Imaging, VB Able to convert password protected PDF document.
adding password to pdf; add password to pdf reader
F.6. CODE LISTINGS FOR CHAPTER 6
443
/* if desired, threshold the output image */
if(threshold == 1){
for(i=0; i<rows; i++){
for(j=0; j<cols; j++){
if(out_image[i][j] > high){
out_image[i][j] = new_hi;
}
else{
out_image[i][j] = new_low;
}
}
}
} /* ends if threshold == 1 */
} /* ends homogeneity */
/**************************************************
*
*
difference_edge(...
*
*
This function performs edge detection by looking
*
at the differences in the pixels that surround
*
the center point of a 3x3 area. It replaces the
*
center point with the absolute value of the
*
max difference of:
*
upper left - lower right
*
upper right - lower left
*
left - right
*
top - bottom
*
***************************************************/
difference_edge(the_image, out_image,
rows, cols, bits_per_pixel,
threshold, high)
int
high, threshold;
short **the_image, **out_image;
long
rows, cols, bits_per_pixel;
{
int a, b, absdiff, absmax, diff, i, j,
length, max, max_diff, new_hi, new_low, width;
new_hi = 250;
C# PDF Convert to Jpeg SDK: Convert PDF to JPEG images in C#.net
NET library to batch convert PDF files to jpg image files. Support for customizing image size. Password protected PDF document can be converted and changed.
adding password to pdf file; annotate protected pdf
C# PDF: C#.NET PDF Document Merging & Splitting Control SDK
Can I use RasterEdge C#.NET PDF document merging & splitting toolkit SDK to split password-protected PDF document using Visual C# code?
copy text from protected pdf to word; convert password protected pdf to normal pdf online
444
APPENDIX F. SOURCE CODE LISTINGS
new_low = 16;
if(bits_per_pixel == 4){
new_hi = 10;
new_low = 3;
}
max = 255;
if(bits_per_pixel == 4)
max = 16;
for(i=0; i<rows; i++)
for(j=0; j<cols; j++)
out_image[i][j] = 0;
for(i=1; i<rows-1; i++){
if( (i%10) == 0) printf("%4d", i);
for(j=1; j<cols-1; j++){
max_diff = 0;
absdiff = abs(the_image[i-1][j-1] -
the_image[i+1][j+1]);
if(absdiff > max_diff) max_diff = absdiff;
absdiff = abs(the_image[i-1][j+1] -
the_image[i+1][j-1]);
if(absdiff > max_diff) max_diff = absdiff;
absdiff = abs(the_image[i][j-1] -
the_image[i][j+1]);
if(absdiff > max_diff) max_diff = absdiff;
absdiff = abs(the_image[i-1][j] -
the_image[i+1][j]);
if(absdiff > max_diff) max_diff = absdiff;
out_image[i][j] = max_diff;
} /* ends loop over j */
} /* ends loop over i */
/* if desired, threshold the output image */
if(threshold == 1){
F.6. CODE LISTINGS FOR CHAPTER 6
445
for(i=0; i<rows; i++){
for(j=0; j<cols; j++){
if(out_image[i][j] > high){
out_image[i][j] = new_hi;
}
else{
out_image[i][j] = new_low;
}
}
}
} /* ends if threshold == 1 */
} /* ends difference_edge */
/************************************************
*
*
gaussian_edge(...
*
*
*************************************************/
gaussian_edge(the_image, out_image,
rows, cols, bits_per_pixel,
size, threshold, high)
int
high, size, threshold;
short **the_image,
**out_image;
long
rows, cols, bits_per_pixel;
{
char response[80];
long sum;
int a, b, absdiff, absmax, diff, i, j,
length, lower, max, new_hi, new_low,
scale, starti, stopi, startj, stopj,
upper, width;
new_hi = 250;
new_low = 16;
if(bits_per_pixel == 4){
new_hi = 10;
446
APPENDIX F. SOURCE CODE LISTINGS
new_low = 3;
}
max = 255;
if(bits_per_pixel == 4)
max = 16;
if(size == 7){
lower = -3;
upper = 4;
starti = 3;
startj = 3;
stopi = rows-3;
stopj = cols-3;
scale = 2;
}
if(size == 9){
lower = -4;
upper = 5;
starti = 4;
startj = 4;
stopi = rows-4;
stopj = cols-4;
scale = 2;
}
for(i=0; i<rows; i++)
for(j=0; j<cols; j++)
out_image[i][j] = 0;
for(i=starti; i<stopi; i++){
if ( (i%10) == 0) printf(" i=%d", i);
for(j=startj; j<stopj; j++){
sum = 0;
for(a=lower; a<upper; a++){
for(b=lower; b<upper; b++){
if(size == 7)
sum = sum + the_image[i+a][j+b] *
g7[a+3][b+3];
F.6. CODE LISTINGS FOR CHAPTER 6
447
if(size == 9)
sum = sum + the_image[i+a][j+b] *
g9[a+4][b+4];
} /* ends loop over a */
} /* ends loop over b */
if(sum < 0) sum = 0;
if(sum > max) sum = max;
out_image[i][j] = sum;
} /* ends loop over j */
} /* ends loop over i */
/* if desired, threshold the output image */
if(threshold == 1){
for(i=0; i<rows; i++){
for(j=0; j<cols; j++){
if(out_image[i][j] > high){
out_image[i][j] = new_hi;
}
else{
out_image[i][j] = new_low;
}
}
}
} /* ends if threshold == 1 */
} /* ends gaussian_edge */
/**************************************************
*
*
contrast_edge(...
*
*
The edge detector uses the basic quick edge
*
detector mask and then divides the result
*
by a contrast smooth mask. This implements
*
Johnson’s contrast based edge detector.
*
***************************************************/
contrast_edge(the_image, out_image,
rows, cols, bits_per_pixel,
448
APPENDIX F. SOURCE CODE LISTINGS
threshold, high)
int
high, threshold;
short **the_image, **out_image;
long
rows, cols, bits_per_pixel;
{
int ad, d;
int a, b, absdiff, absmax, diff, i, j,
length, max, new_hi, new_low,
sum_d, sum_n, width;
new_hi = 250;
new_low = 16;
if(bits_per_pixel == 4){
new_hi = 10;
new_low = 3;
}
max = 255;
if(bits_per_pixel == 4)
max = 16;
for(i=0; i<rows; i++)
for(j=0; j<cols; j++)
out_image[i][j] = 0;
for(i=1; i<rows-1; i++){
if( (i%10) == 0) printf("%4d", i);
for(j=1; j<cols-1; j++){
sum_n = 0;
sum_d = 0;
for(a=-1; a<2; a++){
for(b=-1; b<2; b++){
sum_n = sum_n + the_image[i+a][j+b] *
e_mask[a+1][b+1];
sum_d = sum_d + the_image[i+a][j+b] *
contrast[a+1][b+1];
}
}
d = sum_d / 9;
if(d == 0)
d = 1;
Documents you may be interested
Documents you may be interested