bmp

问题 I have two BMP files, a windows screenshot and a linux generated file using GIMP. What I noticed is that all the data in the headers is stored in big endian format. The biWidth , biHeight and biPlanes fields of the DIB header are all in big endian, also "the size of the BMP file in bytes" (the second field from Bitmap File Header) is big endian, which contradicts wikipedia, where it says: "All of the integer values are stored in little-endian format" I looked into GIMP's source code and I

问题 I am currently doing my first programming assignment in C++, and my objective is to Scale a Bitmap image using just the basic IO headers. I've used http://en.wikipedia.org/wiki/BMP_file_format#DIB_header_.28bitmap_information_header.29 as my reference guide to finding the Header information. My problem is creating an algorithm to scale the image up in terms of adding in individual pixels. I have made a series of for loops which are commented (They use the header information to determine how

问题 I am trying to read simple BMP file and without performing any operations I am writing it back again to file. I don't know where the mistake is in reading the file or writing it back. I have added padding while reading as well as while writing -- File-Read --. std::vector<char> tempImageData; /*tempImageData.resize(m_bmpInfo->imagesize); file.seekg(m_bmpHeader->dataoffset); file.read(&tempImageData[0], m_bmpInfo->imagesize); file.close();*/ tempImageData.resize(m_bmpInfo->imagesize); int

问题 I am working on a VBA class to create QR codes and I am getting stumped at the point where I write the QR data bits to an actual BMP file. To get the hang of the BMP structure and the code I could I have been trying to make a 21 x 21 pixel bitmap of all white using the code below. This almost works, except that the leftmost column in every row is yellow instead of white. Any ideas on what could be happening? I'm guessing there is something wrong with my header definition, but I'm not sure. I

问题 gridcell = (Button) row.findViewById(R.id.calendar_day_gridcell); gridcell.setText("Day 1"); URL url = new URL("http://172.16.4.29:81/pht/2013/9/18/3027_2013_9_18_12_14_56_b.JPG"); Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream()); How can I set bitmap bmp image to button gridcells background Image? 回答1: You can use following code to do that.. BitmapDrawable bdrawable = new BitmapDrawable(context.getResources(),bitmap); then just set bitmap with below function

问题 Hi i have loaded a bitmap and i need to set my own height and width , bitmap.height = 100; but this statement doesn't allow me because it says that 'System.Drawing.Image.Width' cannot be assigned to -- it is read only whats the method to re-size the bitmap? or assign these parameters ? 回答1: The parameters are read-only because a bitmap is a fixed size. Changing the size of the bitmap structure wouldn't do anything to affect the image. What you need is to scale the image, rather than just

问题 I need to get screens (prt sc) and document them for a specification in Excel. However clipboard manager for paste special only include to paste as bitmap. It would have been utter benefitial to have the full list of imaage extentions support. So is there any other alternative to convert all bitmap images in Excel files to .png? I am open to VBA ideas. Specially if one press F5 could get all done. I have seen these posts in SO for C#. Also read this post talking about Excel, but really not

问题 I'm trying to create a program for my resume But I have a problem with converting bitmap photo that is greyscale photo to hexadecimal or better calls it the codes if the colors are anyone who can help me? I tried to convert it with base64string but it didn't work. openFileDialog1=new OpenFileDialog(); OpenFileDialog dlg = new OpenFileDialog(); dlg.Title = "Open Image"; dlg.Filter = "bmp files (*.bmp)|*.bmp"; if (dlg.ShowDialog() == DialogResult.OK) { Rectangle bounds = Screen.GetBounds(Point

问题 I'm trying to read in a bmp file to my program and I'm having some issues. After reading in the file if i tell it to print the pBmp->header.fileSize it says 16 but if i look at it in a hex editor the file size portion has F6 7A 10 00 if I modify the value to the correct file size in the hex it will say F6 7A F6 7A 10 00 but that is running into the resv1 which should always be zero. I know that this is only reading in 1 pixel of data another issue I have is when I try to use a while loop to

问题 I'm trying to create a GD image resource from a BMP image, however I'm having no luck. The BMP image in question was created and saved with Photoshop. I've tried a couple of BMPs I found on the web too, and they gave the same results. getimagesize() tells me the BMP image has an image type of IMAGETYPE_BMP (6) and a MIME type of 'image/x-ms-bmp'. I've tried running the image through imagecreatefromwbmp() and imagecreatefromxbm(), but neither recognise it. I've also tried running it through