bmp

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I am trying to convert an image (lets say black and white) to a Matrix (where 0 = black and 1 = white) i tried with this code : procedure TForm1.Button1Click(Sender: TObject); type tab = array[1..1000,1..1000] of

问题 This question already has answers here : Save HBITMAP to *.bmp file using only Win32 (4 answers) Closed 5 years ago . I have the following code. I want to use this information to create one .bmp file that shows the data from memory which is a image copied from a framegrabber into main memory, can somebody please let me? Thank you LPSTR CreateBMP( HWND hAppWnd, int nImageType ) { void * pWinGBits = NULL; int i; Z_BITMAPINFO zWinGHeader; // bitmapinfo for cerating the DIB // create DC for

问题 I wasn't able to find any difference between bmp files available online, so that I could easily tell whether they were 24 or 32 bit. I need to read a 32 bit bmp file into rgb array using C++ and most tutorials exist only for 32 bit. 回答1: The format of bitmap files is described here on MSDN: it starts with a file header of 14 bytes, followed by a bitmap info header, which contains the information you're looking for in the field biBitCount . Edit: As noted by iinspectable in the comments, the

问题 I'm trying to save an Image to SQL Server so SSRS can read it. I need to convert to WriteableBitmap (and possibly JPEG?) so I can make changes to the image size before saving. However, when I try to pull the converted image out of SQL Server, it will not render in SSRS at all. What am I doing wrong? byte[] m_Bytes = ReadToEnd(fileStream); //this works fine WriteableBitmap bmp1 = new WriteableBitmap(166, 166); bmp1.FromByteArray(m_Bytes); //this works fine ExtendedImage image = bmp1.ToImage();

问题 I am using a capture card driver which gives me the captured bitmap in the form of an unsigned long. Is there any way that I could convert it into an Android bitmap? I would like to display it in an imageview. 来源： https://stackoverflow.com/questions/56732181/converting-capture-card-bitmap-array-to-android-bitmap-array-using-jni

问题 I have a small bmp file and I want to get the RGB values of each pixel and output those values into a txt file if R, G, and B aren't all zero. I wrote the following program; it reads the header data correctly, but the RGB values aren't coming up. I assume I did something wrong in the for loop. #include <iostream> #include <fstream> #include <cstdlib> using namespace std; int main() { ifstream ifs; ofstream ofs; char input[80]; char output[80]; cout<<"Input file name"<<endl; cin>>input; ifs

问题 I am using a library called qdbmc to read a bmp gray image (lena_gray.bmp) this the link to the library and this is my code: int read_image(char *filename) { struct _BMP* bmp; UINT width, height; UCHAR red,green,blue; bmp = BMP_ReadFile(filename); BMP_CHECK_ERROR( stderr, -1 ); /* Get image's dimensions */ width = BMP_GetWidth( bmp ); height = BMP_GetHeight( bmp ); printf("%lu %lu \n",width,height); /* Iterate through all the image's pixels */ for (int x = 0 ; x < width ; ++x ) { for (int y =

问题 I have a function which creates a bmp file and writes the file header, the info header, and the actual pixel data respectively. Here it is: bool SaveBMP(BYTE* Buffer, int width, int height, long paddedsize, LPCTSTR bmpfile) { BITMAPFILEHEADER bmfh; BITMAPINFOHEADER info; memset(&bmfh, 0, sizeof(BITMAPFILEHEADER)); memset(&info, 0, sizeof(BITMAPINFOHEADER)); bmfh.bfType = 0x4d42; // 0x4d42 = 'BM' bmfh.bfReserved1 = 0; bmfh.bfReserved2 = 0; bmfh.bfSize = sizeof(BITMAPFILEHEADER) + sizeof

问题 I need to convert a .png file to .bmp; I'm using the outcome in printer_draw_bmp() to print out a barcode. GD can generate WBMP, but as far as I can tell that's not the same as .bmp. How can I do this conversion? Or is there another way to print a .png directly? 回答1: There is a opensource project on Github that allows reading and saving of BMP files (and other file formats) in PHP. The project is called PHP Image Magician. 回答2: AFAIK, GD doesn't support bmp format. But you can use ImageMagick

问题 I'm trying to create a bmp file. The file is created and I can open it but it says, that the file is corrupt and cannot be opened propperly. Here is how i save the file: void createBMP(char* pixelData, long xRes, long yRes){ BITMAPFILEHEADER fheader; BITMAPINFOHEADER iheader; COLORREF_RGB rgb; //file header werte setzen fheader.bfType = 0x4D42; fheader.bfSize = sizeof(BITMAPFILEHEADER); fheader.bfReserved1 =0; fheader.bfReserved2=0; fheader.bfOffBits = sizeof(BITMAPFILEHEADER)+sizeof