?? ????? ?? ?? C/C? BMP ??? ??
?? ??? ??? ????? ??? ? ??? ??. ???? ?? ? ??? BMP ??????. ? ????? ?? ??? ?? ??? ???? ?? ???? ?? BMP ???? ???? ??? ????.
BMP ?? ??
BMP(??? Image) ??? ?? ??? ??? ???? ?????. ???? ???? ??, ?? ?? ? ?? ??? ?? ??? ??? ???? ????. ?? ?? ??? ?? ??? ??? ????.
- "BM" ??: ??? BMP ???(2???)? ?????.
- ?? ??: BMP ??? ??(???) (4???).
- ?? ???? ???: ?? ? ??? ???? ??(4???) ???).
- BITMAPINFOHEADER: ??, ??, ?? ?? ?, ?? ??(40???) ? ???? ?? ?? ??? ?????.
?? ?? ???? BMP ???? ?????
?? ?? ??? ?? ?????? ???? ?? ?? ??? BMP ???:
FILE *f;
unsigned char *img = NULL;
int filesize = 54 + 3*w*h; // w and h are image width and height
// Allocate memory for image data
img = (unsigned char *)malloc(3*w*h);
memset(img,0,3*w*h);
// Fill img byte array with pixel data
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
int x = i, y = (h-1)-j;
int r, g, b; // Color components
// Set pixel color based on matrix element
if (matrix[i][j]) {
r = g = b = 255; // White pixel
} else {
r = g = b = 0; // Black pixel
}
// Write pixel color components to image data array
img[(x+y*w)*3+2] = (unsigned char)(r);
img[(x+y*w)*3+1] = (unsigned char)(g);
img[(x+y*w)*3+0] = (unsigned char)(b);
}
}
// Set BMP header values
unsigned char bmpfileheader[14] = {'B','M', 0,0,0,0, 0,0, 0,0, 54,0,0,0};
unsigned char bmpinfoheader[40] = {40,0,0,0, 0,0,0,0, 0,0,0,0, 1,0, 24,0};
// Update file size
bmpfileheader[ 2] = (unsigned char)(filesize );
bmpfileheader[ 3] = (unsigned char)(filesize>> 8);
bmpfileheader[ 4] = (unsigned char)(filesize>>16);
bmpfileheader[ 5] = (unsigned char)(filesize>>24);
// Update image width and height
bmpinfoheader[ 4] = (unsigned char)( w );
bmpinfoheader[ 5] = (unsigned char)( w>> 8);
bmpinfoheader[ 6] = (unsigned char)( w>>16);
bmpinfoheader[ 7] = (unsigned char)( w>>24);
bmpinfoheader[ 8] = (unsigned char)( h );
bmpinfoheader[ 9] = (unsigned char)( h>> 8);
bmpinfoheader[10] = (unsigned char)( h>>16);
bmpinfoheader[11] = (unsigned char)( h>>24);
// Save BMP image to file
f = fopen("img.bmp","wb");
fwrite(bmpfileheader, 1, 14, f);
fwrite(bmpinfoheader, 1, 40, f);
for (int i = 0; i < h; i++) {
fwrite(img+(w*(h-i-1)*3), 3, w, f);
fwrite(bmppad, 1, (4-(w*3)%4)%4, f); // Pad to 4-byte boundary
}
// Free resources
free(img);
fclose(f);
? ??? ??? ??? ??? ?? ???? ?? BMP ???? ????? ??? ? ??? ??? ? ?? ??? ?????. ???? ??.
? ??? ?? ????? ?? ?? C/C? ?? ???? ?? BMP ???? ??? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
? AI ??
Undress AI Tool
??? ???? ??
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???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Clothoff.io
AI ? ???
Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!
?? ??
??? ??
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???? ?? ?? ?? ???
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???? 13.0.1 ???
??? PHP ?? ?? ??
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SublimeText3 Mac ??
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std :: Chrono ?? c
Jul 15, 2025 am 01:30 AM
STD :: Chrono? ?? ?? ??, ?? ?? ??, ?? ?? ? ?? ?? ? ?? ?? ??? ???? C?? ???? ??? ?????. 1. std :: chrono :: system_clock :: now ()? ???? ?? ??? ?? ? ??? ?? ??? ???? ?? ? ? ??? ??? ??? ???? ?? ?? ? ????. 2. std :: Chrono :: steady_clock? ???? ?? ??? ???? ?? ??? ???? duration_cast? ?? ?? ?, ? ? ?? ??? ??????. 3. ?? (time_point) ? ?? (??)? ?? ??? ? ? ??? ?? ??? ? ?? epoch (epoch)???? ???????.
C? ??? ???? ??????
Jul 04, 2025 am 01:09 AM
???? ?????? ??? ?? ???? ?? ? ??? ????? ???? ????? ??????. 1. ??? ?? ???? ????, ?? ??? ?? ?? ??? ????? (??? ?? C? std :: atomic? ?????). 2. ? ???? ??? ?? ? ?? ?? ???? ?? ???. 3. ??? ?? ??? ???? ???? ??? ????? ?? ? ??? ????? ??????. 4. ?????,? ?? ??? ?? ????? ?? ?? ??? ??? ?? ?? ?? ???? ?????. 5. ??? ?? ?? ??? ?? ? ? ??? ??? ??? ??? ??? ????.
C?? ?? ??? ?? ???
Jul 07, 2025 am 01:41 AM
C : 1?? ?? ????? ?? ??? ?? ??? ????. Linux ????? Backtrace ? Backtrace_symbols ??? ??????. ?? ?? ? ?? ?? ??? ???? ??? ? ? -rdynamic ?? ??? ???????. 2. Windows ????? CaptUreStackBackTrace ??? ???? DBGHELP.LIB? ???? PDB ??? ???? ?? ??? ?? ???????. 3. GoogleBreakPad ?? Boost.StackTrace? ?? ?? ?????? ???? ?? ??? ? ?? ?? ??? ??????. 4. ?? ???? ?? ??? ???? ?? ???? ?? ??? ???? ?????.
C?? Python? ???? ???
Jul 08, 2025 am 12:40 AM
C?? Python Code? ????? ?? ???? ??? ? ?? ???, ?? ?? ?? ??? ???? ?? ??? ?? ? ? ????. 1. Py_Initialize ()? ?????? ????? py_finalize ()? ????. 2. pyrun_simplefile? ???? ??? ?? ?? pyrun_simplefile? ?????. 3. pyimport_importmodule? ?? ?? ?? ??, pyobject_getattrstring? ?? ??? ???? py_buildvalue? ?? ??? ???? ??? ???? ???? ??
C? ??? ??? ??? ??????
Jul 05, 2025 am 01:44 AM
functionhiding alkes ressaMenaMeAsabaseClassFunctions? henaderivedClassDefinesAftunction, theBaseInAccessibleThroughTheDerivedClass.thishAppenswhentheBaseFunctionis notvirtualorsignaturesdon n'tmatchforevered, and nousingdeclarationis
C? POD (?? ?? ???) ??? ??????
Jul 12, 2025 am 02:15 AM
C??, POD (PANDALDATA) ??? ??? ??? ?? ??? ???? C ?? ??? ??? ?????. ??? ? ?? ??? ????????. ??? ??? ?? ???? ???, ?? memcpy? ?? ?? ? ? ????. ?? ????? ?? ??? ??? ??? ? ????. ?? ?? ???? ??? ?????. ?? ? ?? ??? ??, ??? ?? ??? ?? ???, ?? ?? ?? ?? ??? ?? ? ?? ? ?? ?? ??? ?????. ?? ?? structpoint {intx; inty;}? pod???. ??? ???? ???? I/O, C ?? ???, ?? ??? ?? ?????. std :: is_pod? ?? ??? POD?? ??? ? ??? C 11 ??? std :: is_trivia? ???? ?? ????.
C? ? ??? ? ??????
Jul 09, 2025 am 02:38 AM
anullpointerinc isaspecialValueindicating thatapointerspointtoanyvalidmorylocation, anditusiusedToSafelyManageNageanDcheckPointersbeforedEereferencing.1.Beforec 11,0ornull? WASSED, BUTNULLPTRISFREFERREDFORITYONDTYPESAFETY.SUNULLPOINTETYTETETENULUNULPENTETETETENGE
C?? ??? ?? ??? ???? ??? ??????
Jul 12, 2025 am 01:34 AM
C?? ??? ?? ??? ???? ? ?? ?? ??? ???? : ?? ??? ??, std :: ?? ? ?? ??? ? ??? ???. 1. ?? ???? ?? ???? ???? ??? ???? ?? C ?????? ????? ???? ?? ????. 2. STD :: LAMBDA ???? ?? ? ??? ?? C?? ???? ???? ??? ?? ??? ??? ???? ??-?????. 3. ??? ?? ??? ?? ???? ????? ?? ?? ?? ??? ????? ??? ??? ?? ??? ???? ? ????. ????? ???? ??? std :: ?? ?? ???? ?? ??????? ?? ???? ?? ?? ? ? ????.
