EXPERIMENTS AND PROGRAM EXAMPLES in .NET

Connect QR-Code in .NET EXPERIMENTS AND PROGRAM EXAMPLES
EXPERIMENTS AND PROGRAM EXAMPLES
Deploy qrcode on .net
generate, create denso qr bar code none in .net projects
Table 15.7 Color temperatures of different light sources Light sources Candle light Incandescent (household) lights Sunrise or sunset Fluorescent (of ce) lights Electronic ash lights Sunny daylight Bright overcast sky
.net Vs 2010 qr-code scanner in .net
Using Barcode decoder for .NET Control to read, scan read, scan image in .NET applications.
Color temperature (Kelvin) 1000 2000 K 2500 3500 K 3000 4000 K 4000 5000 K 5000 5500 K 5000 6500 K 6500 8000 K
.net Vs 2010 barcode scanner in .net
Using Barcode scanner for .net framework Control to read, scan read, scan image in .net framework applications.
15.10.3 White Balance
Bar Code creation on .net
using barcode encoding for visual .net crystal control to generate, create barcode image in visual .net crystal applications.
Under different lighting sources, the object will show in different colors. Human vision can adapt these differences to view the proper colors. However, machine vision devices as well as digital cameras and camcorders cannot automatically adjust the colors. If the device is not correctly con gured, the image color will differ under various light sources. White balance is a process that corrects the unrealistic color resulted from different light sources. Traditional mechanical cameras use special optical lters for color corrections when taking pictures, while digital cameras use the auto-white balance and the manual-white balance. Auto-white balance uses the data from image sensor to compute the true white color to balance the R, G, and B color components. Manual (or xed) white balance uses prede ned color balance setting on the particular lighting conditions, such as beach and snow scenes, outdoor daylight, and indoor candescent light. The light sources are usually described using color temperatures. Table 15.7 lists the common light sources and their temperatures. Incorrect color balance will produce the bluish or reddish images. Example 15.4 in Section 15.5 shows an example of performing image auto-white balance. In this experiment, we will write a C55x program for auto-white balance. MATLAB Link for CCS will be used to control the experiment. Figure 15.19 shows the ow of the auto-white balance color correction. Table 15.8 lists a section of the xed-point C function that computes the sum of the pixels for white balance process, Table 15.9 shows a portion of the C program that calculates the white-balance gain, and Table 15.10 provides an example of the white balance correction on image pixels. The experiment is controlled by MATLAB script whiteBalance.m. MATLAB Link for CCS allows MATLAB program to access global data variables using the write( ) function. The experiment also uses MATLAB function size( ) to nd the width and height of the image le and pass these parameters to DSP object as follows:
Visual Studio .NET qr code iso/iec18004 printer in c#.net
use visual .net qr bidimensional barcode printer toinsert qr code jis x 0510 with visual c#
[height, width, color] = size(RGB); write(dsp,address(dsp,'imWidth'), uint16(width)); write(dsp,address(dsp,'imHeight'),uint16(height));
Control qr code iso/iec18004 image in .net
using asp.net webform topaint qr code 2d barcode in asp.net web,windows application
Compute sum for each color component, R, G, and B
Control qr code 2d barcode image with visual basic
using barcode implementation for .net vs 2010 control to generate, create qr code jis x 0510 image in .net vs 2010 applications.
Calculate gain factor for each R, G, and B component
Bar Code barcode library with .net
using barcode encoding for vs .net control to generate, create barcode image in vs .net applications.
Adjust each pixel with corresponding gain factor
Barcode 39 encoder in .net
using barcode integrated for visual studio .net crystal control to generate, create code 3 of 9 image in visual studio .net crystal applications.
Auto-white balance color correction
Bar Code barcode library with .net
using barcode encoder for .net control to generate, create barcode image in .net applications.
INTRODUCTION TO DIGITAL IMAGE PROCESSING
.net Vs 2010 barcode 39 integration on .net
using .net toget barcode 39 on asp.net web,windows application
Table 15.8 Auto-white balance code example for computing the sum
Incoporate codabar for .net
using .net toattach ansi/aim codabar in asp.net web,windows application
AC0 = 0; for (j=0; j<height; j++) { for (i=0; i<width/2; i++) { AC0 += (*r>>8)&0xff; AC0 += (*r++)&0xff; } }
Control ean13+5 data with excel
to encode ean13+2 and ean 13 data, size, image with microsoft excel barcode sdk
Table 15.9
Control code 128c size for .net
code 128a size in .net
Auto-white balance code example for calculating gain
.net Winforms ansi/aim code 39 generation with .net
using .net winforms toinclude 39 barcode on asp.net web,windows application
rGain = 255; gGain = 255; bGain = 255; if ( (gSum <= rSum)&&(gSum <= bSum) ) { rGain = (unsigned short)((gSum*255) / rSum); bGain = (unsigned short)((gSum*255) / bSum); }
Control upc - 13 size on java
upc - 13 size for java
In the above example, the image width and height are obtained from the RGB matrix. The width and height are then written to processor s global data variables imWidth and imHeight as 16-bit unsigned integers. This feature creates a exible program that is no longer depending on the parameter le. This experiment also uses two packed pixels for each 16-bit data memory. The white balance program is written for handling dual-pixel data format. We use three pictures taken by a digital camera, which is set to xed white balance at 4150 K for this experiment. These pictures are taken under incandescent light source (2850 K), uorescent light source (4150 K), and daylight (6500 K). Before applying the white balance, the picture taken under candescent light looks reddish, while the picture taken under the bright daylight
Control upc code size on office word
gtin - 12 size with microsoft word
Table 15.10
Java barcode pdf417 generating with java
using java toget pdf417 2d barcode on asp.net web,windows application
Auto-white balance code example for white balance function
.NET ucc.ean - 128 encoding on c#
generate, create ean128 none in visual c# projects
for (j=0; j<height; j++) { for (i=0; i<width/2; i++) { AC0 = (*r>>8)&0xff; AC0 *= rGain; if (AC0 > 0xff00) AC0 = 0xff00; AC0 &= 0xff00; AC1 = (*r)&0xff; AC1 *= rGain; AC1 >>= 8; if (AC1 > 0xff) AC1 = 0xff; *r++ = (unsigned short)(AC0| AC1); } }
Control gtin - 12 size for .net
gtin - 12 size in .net