本文整理汇总了C++中pixel函数的典型用法代码示例。如果您正苦于以下问题：C++ pixel函数的具体用法？C++ pixel怎么用？C++ pixel使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了pixel函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: get_extrema
void FloatImage::write_pgm(char *filename, float mini, float maxi)
{
int i,j;
int count = xsize * ysize;
/* maybe find minimum and maximum values */
float min = mini;
float max = maxi;
if (min == 0 && max == 0) {
get_extrema (min, max);
if (max == min)
min = max - 1;
}
unsigned char *image_data;
image_data = new unsigned char [count];
for (j = 0; j < ysize; j++)
for (i = 0; i < xsize; i++) {
int val = (int) (255 * (pixel(i,j) - min) / (max - min));
/* clamp values */
if (val < 0) val = 0;
if (val > 255) val = 255;
image_data[i+j*xsize] = val;
}
int fd = open(filename, O_CREAT|O_TRUNC|O_WRONLY, 0666);
if (fd < 0) {
fprintf(stderr, "Unable to open %s: %s\n", filename, strerror(errno));
exit(-1);
}
char str[80];
sprintf (str, "P5\n%d %d\n255\n", xsize, ysize);
int cc = write(fd, str, strlen(str));
if (cc == -1) {
fprintf (stderr, "Can't write to file.\n");
exit (-1);
}
cc = write(fd, image_data, sizeof(unsigned char) * xsize * ysize);
if (cc != sizeof(unsigned char) * xsize * ysize) {
fprintf(stderr, "Write returned short: %s\n", strerror(errno));
close(fd);
exit(-1);
}
close(fd);
}
开发者ID:haolly，项目名称:fluid3dsjtu，代码行数:56，代码来源:FloatImage.cpp
示例2: pixel
void Bitmap::premultiplyAlpha()
{
if(!premultiplied)
{
for(uint32_t x=0; x<width; ++x)
{
for(uint32_t y=0; y<height; ++y)
{
common::Color c = pixel(x,y);
float a = c.fv[3];
c.fv[0] = c.fv[0]*a;
c.fv[1] = c.fv[1]*a;
c.fv[2] = c.fv[2]*a;
pixel(x,y,c);
}
}
premultiplied = true;
}
}
开发者ID:Wednesnight，项目名称:lostengine，代码行数:19，代码来源:Bitmap.cpp
示例3: ShowSubdiv
void ShowSubdiv(HWND hw)
{
HDC dc = GetDC (hw);
u32 CB = RGB(255,0,0);
for (int z=0; z<dimZ; z++)
{
for (int x=0; x<dimX; x++)
{
Texel& T = texels[z*dimX+x];
if (T.N) {
pixel (dc,x,z,RGB(127,127,127));
vertex& N = *T.N;
int _x=x*3,_y=z*3;
if (isBorder(N,0)) { // left
SetPixel(dc,_x,_y+0,CB);
SetPixel(dc,_x,_y+1,CB);
SetPixel(dc,_x,_y+2,CB);
}
if (isBorder(N,1)) { // fwd
SetPixel(dc,_x+0,_y,CB);
SetPixel(dc,_x+1,_y,CB);
SetPixel(dc,_x+2,_y,CB);
}
if (isBorder(N,2)) { // right
SetPixel(dc,_x+2,_y+0,CB);
SetPixel(dc,_x+2,_y+1,CB);
SetPixel(dc,_x+2,_y+2,CB);
}
if (isBorder(N,3)) { // back
SetPixel(dc,_x+0,_y+2,CB);
SetPixel(dc,_x+1,_y+2,CB);
SetPixel(dc,_x+2,_y+2,CB);
}
} else {
pixel (dc,x,z,RGB(0,127,0));
}
}
}
ReleaseDC (hw, dc);
}
开发者ID:2asoft，项目名称:xray，代码行数:43，代码来源:compiler_display.cpp
示例4: clear
int clear(int sx, int sy, int ex, int ey)
{
for(int j=sy; j<ey; j++)
{
for(int i=sx; i<ex; i++)
{
pixel(i, j, 0, 0, 0);
}
}
}
开发者ID:emilfihlman，项目名称:fbpuukottaja，代码行数:10，代码来源:fbpuukk.c
示例5: GEODE_ASSERT
Array<Vector<T,3>,2> Image<T>::median(const vector<Array<const Vector<T,3>,2> >& images) {
GEODE_ASSERT(images.size());
int n = (int)images.size();
for (int k=1;k<n;k++)
GEODE_ASSERT(images[0].sizes()==images[k].sizes());
Array<T,2> pixel(3,n);
Array<Vector<T,3>,2> result(images[0].sizes());
for(int t=0; t<result.flat.size(); t++){
for (int k=0;k<n;k++)
images[k].flat[t].get(pixel(0,k),pixel(1,k),pixel(2,k));
for (int a=0;a<3;a++) {
RawArray<T> samples = pixel[a];
nth_element(&samples[0],&samples[n/2],&samples[n-1]);
result.flat[t][a] = samples[n/2];
}
}
return result;
}
开发者ID:Haider-BA，项目名称:geode，代码行数:19，代码来源:Image.cpp
示例6: qDebug
void Utility::Yuv422FileSaver::savePacked() {
for(std::size_t k=0; k<video_->getNumberOfFrames()&&isRunning_; k++) {
auto frame=video_->getFrame(k);
for(int i=0; i<width_*height_; i+=2) {
int y1=i/width_;
int x1=i%width_;
int y2=(i+1)/width_;
int x2=(i+1)%width_;
if(!frame->valid(x1,y1)||!frame->valid(x2,y2)) {
qDebug()<<"Wrong pixel coordinates";
continue;
}
auto vec=Rgb888ToYuv422(frame->pixel(x1,y1),frame->pixel(x2,y2));
dataStream_<<vec.getU()<<vec.getY1()<<vec.getV()<<vec.getY2();
}
}
}
开发者ID:SuppenGeist，项目名称:pse-ws1516-videoencoder-ta，代码行数:19，代码来源:Yuv422FileSaver.cpp
示例7: copyToLedsArray
void copyToLedsArray(uint8_t (*state)[WIDTH][HEIGHT]) {
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
uint8_t hugh = (*state)[x][y];
if (hugh > 0) {
pixel(x, y) = CHSV(hugh, 255, 255);
}
}
}
}
开发者ID:SigmazGFX，项目名称:TechnicolorDreamcoat2014，代码行数:10，代码来源:Life.cpp
示例8:
/// Allow access to these pixels.
void asf::parameter_float_image::pixel_setsize(const pixel_rectangle &pixel_meta,int zoom_meta)
{
super::pixel_setsize(pixel_meta,zoom_meta);
int new_dx=bands(), new_dy=bands()*pixel().size_x();
if ((data!=0) && (new_dx==xd) && (new_dy==yd))
{ /* then re-use existing buffer--it's still OK. */ }
else { /* Have to allocate a new buffer */
data_alloc(src_alloc,0,new_dx,new_dy);
}
}
开发者ID:DavinSimmons，项目名称:ASF_MapReady，代码行数:11，代码来源:image.cpp
示例9: mycircle
void mycircle(int a,int b,int r,int c)
{
int p=1-r,x=0,y=r;
pixel(a,b,x,y,c);
while(x<y)
{
if(p<0)
{
x++;
p=p+(2*x)+1;
}
else
{
x++;
y--;
p=p+(2*x)-(2*y)+1;
}
pixel(a,b,x,y,c);
}
}
开发者ID:mintoo511，项目名称:Moving-Car-in-CPP-graphics，代码行数:20，代码来源:movingCar.cpp
示例10: spinHue
void spinHue(void) {
static float angle = 0.0f;
angle += 0.001;
if (angle > PI * 2) angle -= PI * 2;
pixel(
64.0f * (sin(angle + circleThird(0)) + 1.0f),
64.0f * (sin(angle + circleThird(1)) + 1.0f),
64.0f * (sin(angle + circleThird(2)) + 1.0f)
);
}
开发者ID:Bluebie，项目名称:avr-toys，代码行数:11，代码来源:glass-lamp.c
示例11: base
Rect CoordConverter::screenToWindow(const Window& window, const URect& rect)
{
Vector2 base(getBaseValue(window));
Rect pixel(rect.asAbsolute(System::getSingleton().getRenderer()->getSize()));
// negate base position
base.d_x = -base.d_x;
base.d_y = -base.d_y;
return pixel.offset(base);
}
开发者ID:chenbk85，项目名称:3dlearn，代码行数:11，代码来源:ELGUICoordConverter.cpp
示例12: drawcircle
static void drawcircle(uint8_t *data, int width) {
int x, y;
double hw = (double)width / 2.0 - 0.5;
for(y = 0; y != width; y++) {
for(x = 0; x != width; x++) {
double dx = (x - hw), dy = (y - hw);
double d = sqrt(dx * dx + dy * dy) - hw + 0.5;
*data++ = pixel(d);
}
}
}
开发者ID:Chuongv，项目名称:uTox，代码行数:11，代码来源:svg.c
示例13: vga_fill
void vga_fill(int w, int h, int x, int y, int c)
{
int tx,ty;
for(ty = y; ty < y+h; ty++){
for(tx = x; tx < x+w; tx++){
pixel(tx,ty,c);
}
}
}
开发者ID:danilaslau，项目名称:frotznet，代码行数:11，代码来源:vga.c
示例14: noise
int noise(void)
{
for(int j=96; j<yres; j++)
{
for(int i=0; i<xres; i++)
{
char r=rand()>>23-1;
pixel(i, j, r, r, r);
}
}
}
开发者ID:emilfihlman，项目名称:fbpuukottaja，代码行数:11，代码来源:fbpuukk.c
示例15: free_color
void free_color()
{
unsigned long pixels[2];
pixels[0] = pixel();
XFreeColors ( m_display,
m_map,
pixels,
1,
0 );
}
开发者ID:8l，项目名称:x11，代码行数:11，代码来源:color.hpp
示例16: vga_fill_grad
void vga_fill_grad(int w, int h, int x, int y)
{
int tx,ty;
for(ty = y; ty < y+h; ty++){
for(tx = x; tx < x+w; tx++){
pixel(tx,ty,128 + ty/4);
}
}
}
开发者ID:danilaslau，项目名称:frotznet，代码行数:11，代码来源:vga.c
示例17: pixel
void Picasso::circle (unsigned int x, unsigned int y, unsigned int r) {
float rads = 0;
for(float da = 1; da <= 360; da++) {
rads = da / 180 * 3.14;
pixel(
x + (unsigned int)(cos(rads) * r),
y + (unsigned int)(sin(rads) * r)
);
}
};
开发者ID:mjurczyk，项目名称:eve，代码行数:12，代码来源:Picasso.cpp
示例18: drawcross
static void drawcross(uint8_t *data, int width) {
int x, y;
double hw = 0.5 * (double)(width - 1);
double w = 0.0625 * (double)width;
for(y = 0; y != width; y++) {
for(x = 0; x != width; x++) {
double dx = fabs(x - hw), dy = fabs(y - hw);
double d = fmin(dx, dy) - w;
*data++ = pixel(d);
}
}
}
开发者ID:Chuongv，项目名称:uTox，代码行数:12，代码来源:svg.c
示例19: result
lost::shared_ptr<Bitmap> Bitmap::rotCW()
{
shared_ptr<Bitmap> result(new Bitmap(height, width, COMPONENTS_RGBA));
for(uint32_t y=0; y<height; ++y)
{
for(uint32_t x=0; x<width; ++x)
{
result->pixel(y, x, pixel((width-1)-x,y));
}
}
return result;
}
开发者ID:Wednesnight，项目名称:lostengine，代码行数:12，代码来源:Bitmap.cpp
示例20: base
//----------------------------------------------------------------------------//
Rectf CoordConverter::screenToWindow(const Window& window, const URect& rect)
{
Vector2f base(getBaseValue(window));
Rectf pixel(asAbsolute(rect, window.getRootContainerSize()));
// negate base position
base.d_x = -base.d_x;
base.d_y = -base.d_y;
pixel.offset(base);
return pixel;
}
开发者ID:AjaxWang1989，项目名称:cegui，代码行数:13，代码来源:CoordConverter.cpp
注：本文中的pixel函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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