This method is based upon the image hiding technic into another image using lsb algorithm called as Steganography.
标签： image algorithm another technic
上传时间： 2013-12-15
上传用户：sdq_123
时域lsb隐藏算法,实现随机信息隐藏到载体图片内,并界附带提取信息代码
上传时间： 2017-06-11
上传用户：lvzhr
基于lsb的信息隐藏技术——MFC——编译已经通过运行正常
上传时间： 2017-06-17
上传用户：TF2015
lsb embedding for invisible image watermarking
标签： watermarking embedding invisible image
上传时间： 2013-12-13
上传用户：xyipie
lsb的基于图像的信息隐藏，水印嵌入和信息的提取
上传时间： 2014-11-26
上传用户：hwl453472107
在matlab环境下利用lsb最低有效位算法将一个图片水印隐藏在载体图片中，并对被隐藏那个信息进行提取。
上传时间： 2017-09-15
上传用户：懒龙1988
这是带密钥的随机间隔lsb算法，自己写的
标签： lsb算法
上传时间： 2015-06-10
上传用户：wby19941127
重力传感器芯片ADXL345的驱动代码程序。ADXL345是ADI首颗加入数码输出的高重力加速度的侦测器.最高可支持到±16g,ADC可为10bit~13bit灵敏度可维持在4mg/lsb.为了方便使用ADXL345支持I2C/SPI及中断输出,可有效减轻MCU的负荷. 3mm x 5mm小型化包装非常适合用于可携式产品.
上传时间： 2013-04-24
上传用户：yuchunhai1990
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone lsb apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 lsb step. For example,a DAC with a 1.5 lsb output change for a 1 lsb digital codechange exhibits 1⁄2 lsb differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 lsb will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an lsb.lsb (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a slope whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
标签： Converters Defini DAC
上传时间： 2013-10-30
上传用户：stvnash
TLC2543是TI公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D转换过程。由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。 TLC2543的特点 （1）12位分辩率A/D转换器； （2）在工作温度范围内10μs转换时间； （3）11个模拟输入通道； （4）3路内置自测试方式； （5）采样率为66kbps； （6）线性误差±1lsbmax； （7）有转换结束输出EOC； （8）具有单、双极性输出； （9）可编程的MSB或lsb前导； （10）可编程输出数据长度。 TLC2543的引脚排列及说明 TLC2543有两种封装形式：DB、DW或N封装以及FN封装，这两种封装的引脚排列如图1，引脚说明见表1 TLC2543电路图和程序欣赏 #include<reg52.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int sbit clock=P1^0; sbit d_in=P1^1; sbit d_out=P1^2; sbit _cs=P1^3; uchar a1,b1,c1,d1; float sum,sum1; double sum_final1; double sum_final; uchar duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; uchar wei[]={0xf7,0xfb,0xfd,0xfe}; void delay(unsigned char b) //50us { unsigned char a; for(;b>0;b--) for(a=22;a>0;a--); } void display(uchar a,uchar b,uchar c,uchar d) { P0=duan[a]|0x80; P2=wei[0]; delay(5); P2=0xff; P0=duan[b]; P2=wei[1]; delay(5); P2=0xff; P0=duan[c]; P2=wei[2]; delay(5); P2=0xff; P0=duan[d]; P2=wei[3]; delay(5); P2=0xff; } uint read(uchar port) { uchar i,al=0,ah=0; unsigned long ad; clock=0; _cs=0; port<<=4; for(i=0;i<4;i++) { d_in=port&0x80; clock=1; clock=0; port<<=1; } d_in=0; for(i=0;i<8;i++) { clock=1; clock=0; } _cs=1; delay(5); _cs=0; for(i=0;i<4;i++) { clock=1; ah<<=1; if(d_out)ah|=0x01; clock=0; } for(i=0;i<8;i++) { clock=1; al<<=1; if(d_out) al|=0x01; clock=0; } _cs=1; ad=(uint)ah; ad<<=8; ad|=al; return(ad); } void main() { uchar j; sum=0;sum1=0; sum_final=0; sum_final1=0; while(1) { for(j=0;j<128;j++) { sum1+=read(1); display(a1,b1,c1,d1); } sum=sum1/128; sum1=0; sum_final1=(sum/4095)*5; sum_final=sum_final1*1000; a1=(int)sum_final/1000; b1=(int)sum_final%1000/100; c1=(int)sum_final%1000%100/10; d1=(int)sum_final%10; display(a1,b1,c1,d1); } }
上传时间： 2013-11-19
上传用户：shen1230
