how to view pdf file in asp.net using c# : Extract pictures from pdf Library software component .net windows wpf mvc cips2ed69-part1070

F.15. CODE LISTINGS FOR CHAPTER 15
669
for(i=sd2; i<rows-sd2; i++){
for(j=sd2; j<cols-sd2; j++){
out_image[i][j] =
abs(the_image[i][j] -
the_image[i+sd2][j+sd2]);
} /* ends loop over j */
} /* ends loop over i */
fix_edges(out_image, sd2, rows-1, cols-1);
} /* ends difference_array */
/*******************************************
*
*
amean(..
*
*
This calculates the mean measure
*
for a sizeXsize area.
*
*
Look at Levine’s book page 451 for
*
the formula.
*
"Vision in Man and Machine" by
*
Martin D. Levine, McGraw Hill, 1985.
*
*******************************************/
amean(the_image, out_image,
size,
rows, cols, bits_per_pixel)
int
size;
long
bits_per_pixel, cols, rows;
short **the_image,
**out_image;
{
int
a, b, count, i, j, k, max,
sd2, sd2p1;
short
pixel;
unsigned long big;
sd2
= size/2;
sd2p1 = sd2 + 1;
Extract pictures from pdf - Select, copy, paste PDF images in C#.net, ASP.NET, MVC, Ajax, WinForms, WPF
Support PDF Image Extraction from a Page, a Region on a Page, and PDF Document
extract images from pdf; extract jpeg from pdf
Extract pictures from pdf - VB.NET PDF Image Extract Library: Select, copy, paste PDF images in vb.net, ASP.NET, MVC, Ajax, WinForms, WPF
Support PDF Image Extraction from a Page, a Region on a Page, and PDF Document
extract pdf pages to jpg; extract images from pdf c#
670
APPENDIX F. SOURCE CODE LISTINGS
max = 255;
if(bits_per_pixel == 4){
max = 16;
}
/**************************************
*
*
Calculate the gray level difference
*
array.
*
***************************************/
difference_array(the_image, out_image,
size, rows, cols);
for(i=0; i<rows; i++)
for(j=0; j<cols; j++)
the_image[i][j] = out_image[i][j];
/**************************************
*
*
Loop over the image array and
*
calculate the mean measure.
*
***************************************/
printf("\n");
for(i=sd2; i<rows-sd2; i++){
if( (i%10) == 0) printf("%d ", i);
for(j=sd2; j<cols-sd2; j++){
pixel = 0;
for(a=-sd2; a<sd2p1; a++){
for(b=-sd2; b<sd2p1; b++){
pixel = pixel + the_image[i+a][j+b];
}
}
out_image[i][j] = pixel/(size*size);
if(out_image[i][j] > max)
out_image[i][j] = max;
} /* ends loop over j */
} /* ends loop over i */
fix_edges(out_image, sd2, rows-1, cols-1);
VB Imaging - VB Code 93 Generator Tutorial
Visual VB examples here for developers to create and write Code 93 linear barcode pictures on PDF documents, multi-page TIFF, Microsoft Office Word, Excel and
how to extract images from pdf file; extract image from pdf online
VB.NET PDF Convert to Word SDK: Convert PDF to Word library in vb.
application. In addition, texts, pictures and font formatting of source PDF file are accurately retained in converted Word document file.
extract image from pdf; how to extract images from pdf file
F.15. CODE LISTINGS FOR CHAPTER 15
671
} /* ends amean */
/*******************************************
*
*
hurst(..
*
*
This routine performs the Hurst
*
operation as described in "The Image
*
Processing Handbook" by John C. Russ
*
CRC Press 1992.
*
*
The following show the definitions of
*
the pixel classes used in this routine.
*
*
3x3 case
*
c b c
*
d b a b d
*
c b c
*
*
5x5 case
*
f e d e f
*
e c b c e
*
d b a b d
*
e c b c e
*
f e d e f
*
*
7x7 case
*
h g h
*
f e d e f
*
h e c b c e h
*
g d b a b d g
*
h e c b c e h
*
f e d e f
*
h g h
*
*******************************************/
hurst(the_image, out_image,
size,
rows, cols, bits_per_pixel)
C# Imaging - C# Code 93 Generator Tutorial
Visual C# examples here for developers to create and write Code 93 linear barcode pictures on PDF documents, multi-page TIFF, Microsoft Office Word, Excel and
extract images from pdf files without using copy and paste; how to extract images from pdf files
VB.NET Image: VB.NET Codes to Load Images from File / Stream in .
When evaluating this VB.NET imaging library with pictures of your own We are dedicated to provide powerful & profession imaging controls, PDF document, image to
extract vector image from pdf; extract text from pdf image
672
APPENDIX F. SOURCE CODE LISTINGS
int
size;
long
bits_per_pixel, cols, rows;
short **the_image,
**out_image;
{
float x[8], y[8], sig[8];
float aa, bb, siga, sigb, chi2, q;
int
ndata, mwt;
int
a, b, count, i, j, k,
new_hi, new_low, length,
number, sd2, sd2p1, ss, width;
short *elements, max, prange;
/**********************************************
*
*
Initialize the ln’s of the distances.
*
Do this one time to save computations.
*
**********************************************/
x[1] = 0.0;
/* ln(1)
*/
x[2] = 0.34657359; /* ln(sqrt(2)) */
x[3] = 0.69314718; /* ln(2)
*/
x[4] = 0.80471896; /* ln(sqrt(5)) */
x[5] = 1.03972077; /* ln(sqrt(8)) */
x[6] = 1.09861229; /* ln(3)
*/
x[7] = 1.15129255; /* ln(sqrt(10)) */
sig[1] = 1.0;
sig[2] = 1.0;
sig[3] = 1.0;
sig[4] = 1.0;
sig[5] = 1.0;
sig[6] = 1.0;
sig[7] = 1.0;
sd2 = size/2;
printf("\nHURST>sd2=%d",sd2);
if(sd2 < 2) sd2 = 2;
printf("\nHURST>sd2=%d",sd2);
/**********************************
*
C#: Use OCR SDK Library to Get Image and Document Text
a digital camera, scanned document or image-only PDF using C# color image recognition for scanned documents and pictures in C#. Steps to Extract Text from Image.
how to extract text from pdf image file; pdf extract images
VB.NET Image: Sharpen Images with DocImage SDK for .NET
VB.NET Coding. When you have made certain corrections in your VB.NET project photo or image files, you might want to sharpen your pictures before saving them
some pdf image extractor; extract jpg pdf
F.15. CODE LISTINGS FOR CHAPTER 15
673
*
***********************************/
max = 255;
if(bits_per_pixel == 4){
max = 16;
}
/***************************
*
*
Loop over image array
*
****************************/
printf("\n");
for(i=sd2; i<rows-sd2; i++){
if( (i%10) == 0) printf("%d ", i);
for(j=sd2; j<cols-sd2; j++){
for(k=1; k<=7; k++) y[k] = 0.0;
/*************************************
*
*
Go through each pixel class, set
*
the elements array, sort it, get
*
the range, and take the ln of the
*
range.
*
*************************************/
/* b pixel class */
number
= 4;
elements
= (short *)
malloc(number * sizeof(short));
elements[0] = the_image[i-1][j];
elements[1] = the_image[i+1][j];
elements[2] = the_image[i][j-1];
elements[3] = the_image[i][j+1];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[1] = log(prange);
/* c pixel class */
VB.NET Image: VB.NET Code to Create Watermark on Images in .NET
image one onto it, and whether to burn it to the pictures to make We are dedicated to provide powerful & profession imaging controls, PDF document, tiff files
pdf image extractor c#; extract images pdf
VB.NET Image: Codings for Image Filter Processing with .NET Image
RasterEdge .NET Image SDK provides many different and interesting filters for your pictures / photos with simple and a few Visual Basic .NET programming codings
online pdf image extractor; how to extract a picture from a pdf
674
APPENDIX F. SOURCE CODE LISTINGS
elements[0] = the_image[i-1][j-1];
elements[1] = the_image[i+1][j+1];
elements[2] = the_image[i+1][j-1];
elements[3] = the_image[i-1][j+1];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[2] = log(prange);
/* d pixel class */
elements[0] = the_image[i-2][j];
elements[1] = the_image[i+2][j];
elements[2] = the_image[i][j-2];
elements[3] = the_image[i][j+2];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[3] = log(prange);
/* f pixel class */
if(size == 5 || size == 7){
elements[0] = the_image[i-2][j-2];
elements[1] = the_image[i+2][j+2];
elements[2] = the_image[i+2][j-2];
elements[3] = the_image[i-2][j+2];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[5] = log(prange);
} /* ends if size == 5 */
/* g pixel class */
if(size == 7){
elements[0] = the_image[i-3][j];
elements[1] = the_image[i+3][j];
elements[2] = the_image[i][j-3];
elements[3] = the_image[i][j+3];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[6] = log(prange);
C# Imaging - Scan RM4SCC Barcode in C#.NET
& decode RM4SCC barcode from scanned documents and pictures in your Decode RM4SCC from documents (PDF, Word, Excel and PPT) and extract barcode value as
extract pdf pages to jpg; extract image from pdf c#
VB.NET TIFF: How to Draw Picture & Write Text on TIFF Document in
Many users concern about the issue of how to draw pictures or write text We are dedicated to provide powerful & profession imaging controls, PDF document, tiff
extract images from pdf; extract jpg from pdf
F.15. CODE LISTINGS FOR CHAPTER 15
675
} /* ends if size == 7 */
free(elements);
/* e pixel class */
if(size == 5 || size == 7){
number
= 8;
elements
= (short *)
malloc(number * sizeof(short));
elements[0] = the_image[i-1][j-2];
elements[1] = the_image[i-2][j-1];
elements[2] = the_image[i-2][j+1];
elements[3] = the_image[i-1][j+2];
elements[4] = the_image[i+1][j+2];
elements[5] = the_image[i+2][j+1];
elements[6] = the_image[i+2][j-1];
elements[7] = the_image[i+1][j-2];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[4] = log(prange);
} /* ends if size == 5 */
/* h pixel class */
if(size == 7){
elements[0] = the_image[i-1][j-3];
elements[1] = the_image[i-3][j-1];
elements[2] = the_image[i-3][j+1];
elements[3] = the_image[i-1][j+3];
elements[4] = the_image[i+1][j+3];
elements[5] = the_image[i+3][j+1];
elements[6] = the_image[i+3][j-1];
elements[7] = the_image[i+1][j-3];
sort_elements(elements, &number);
prange = elements[number-1] - elements[0];
if(prange < 0) prange = prange*(-1);
if(prange == 0) prange = 1;
y[7] = log(prange);
} /* ends if size == 7 */
if(size == 5 || size == 7)
free(elements);
/*************************************
676
APPENDIX F. SOURCE CODE LISTINGS
*
*
Call the fit routine to fit the
*
data to a straight line. y=mx+b
*
The answer you want is the slope
*
of the line. That is returned
*
in the parameter bb.
*
*************************************/
ndata = size;
mwt
= 1;
fit(x, y, ndata, sig, mwt, &aa, &bb,
&siga, &sigb, &chi2, &q);
out_image[i][j] = (short)(bb*64.0);
if(out_image[i][j] > max)
out_image[i][j] = max;
if(out_image[i][j] < 0)
out_image[i][j] = 0;
} /* ends loop over j */
} /* ends loop over i */
fix_edges(out_image, sd2, rows-1, cols-1);
} /* ends hurst */
/*******************************************
*
*
compare(..
*
*
This function compares a sizeXsize area
*
starting at line,element in an image
*
with all the sizeXsize areas in the
*
image.
*
*******************************************/
compare(the_image, out_image,
line, element, size,
rows, cols, bits_per_pixel)
int
line, element, size;
F.15. CODE LISTINGS FOR CHAPTER 15
677
long
bits_per_pixel, cols, rows;
short **the_image,
**out_image;
{
int
a, b, count, i, j, k, max,
sd2, sd2p1;
short
pixel;
int
big, diff;
/**************************************
*
*
Declare and allocate memory for the
*
two dimensional small array.
*
***************************************/
short **small;
small = malloc(size * sizeof(short *));
for(i=0; i<size; i++){
small[i] = malloc(size * sizeof(short ));
if(small[i] == ’\0’){
printf("\n\tmalloc of small[%d] failed", i);
exit(0);
}
}
/**************************************
*
*
The calling program read in the
*
part of the input image
*
that contains the line element
*
portion into the out_image array.
*
Copy that into the small array.
*
***************************************/
for(i=0; i<size; i++)
for(j=0; j<size; j++)
small[i][j] = out_image[i][j];
for(i=0; i<rows; i++)
for(j=0; j<cols; j++)
out_image[i][j] = 0;
/**************************************
678
APPENDIX F. SOURCE CODE LISTINGS
*
*
Create the output image and read
*
in the input data.
*
***************************************/
sd2
= size/2;
sd2p1 = sd2 + 1;
max = 255;
if(bits_per_pixel == 4){
max = 16;
}
/**************************************
*
*
Loop over the image array and
*
calculate the contrast measure.
*
***************************************/
printf("\n");
for(i=sd2; i<rows-sd2; i++){
if( (i%10) == 0) printf("%d ", i);
for(j=sd2; j<cols-sd2; j++){
big = 0;
for(a=-sd2; a<sd2p1; a++){
for(b=-sd2; b<sd2p1; b++){
diff = small[a+sd2][b+sd2] -
the_image[i+a][j+b];
big = big + abs(diff);
}
}
big = big/(size*size);
out_image[i][j] = big;
if(out_image[i][j] > max)
out_image[i][j] = max;
} /* ends loop over j */
} /* ends loop over i */
fix_edges(out_image, sd2, rows-1, cols-1);
Documents you may be interested
Documents you may be interested