pixels

问题 Unity has had support for multiple display outputs for a while now (up to 8). With the ReadPixels function, you can specify an area to read from, and an origin coordinate. But I cannot specify a display number to perform the read on. I need to be able to read pixels from a specific display (1-8) with a specific area and origin point. How can I do this, please? 回答1: You can achieve ReadPixels for a specific screen/display. You have to do the following: Before I start, I assume you have a

问题 Okay, here's some code ( pdfDocument is a com.itextpdf.text.Document ): PdfPTable table = new PdfPTable(1); PdfPCell cell = new PdfPCell(); cell.setFixedHeight(3f); for (int i = 1; i < 100; i++) { table.addCell(cell); } pdfDocument.add(table); According to my calculations (pixels = points / 0.75f) 3f points should be EXACTLY 4 pixels on a screen with 96dpi (which mine is). However, when I create a table with the code above, I get alternating heights of the cells 4 - 3 - 4 - 3 - 4 - 3 etc...

问题 Okay, here's some code ( pdfDocument is a com.itextpdf.text.Document ): PdfPTable table = new PdfPTable(1); PdfPCell cell = new PdfPCell(); cell.setFixedHeight(3f); for (int i = 1; i < 100; i++) { table.addCell(cell); } pdfDocument.add(table); According to my calculations (pixels = points / 0.75f) 3f points should be EXACTLY 4 pixels on a screen with 96dpi (which mine is). However, when I create a table with the code above, I get alternating heights of the cells 4 - 3 - 4 - 3 - 4 - 3 etc...

问题 I have a .jpg image captured from a webcam. It is a greyscale image. I need to convert the image to a string of its pixels like so: "255 232 45 678 56 23....345 76 44 767 433 345" How do I go about doing this? Also, would changing the size of the image change these values? 回答1: Assuming you have the image represented as a numpy array (since the question is tagged as OpenCV related, then this is likely the case), then to obtain the result you want, I'd take the following steps. First flatten

来源： https://stackoverflow.com/questions/51566916/why-does-bootstrap-use-a-0-02px-difference-between-screen-size-thresholds-in-its

来源： https://stackoverflow.com/questions/51566916/why-does-bootstrap-use-a-0-02px-difference-between-screen-size-thresholds-in-its

问题 I have a JPG, BMP, or SVG image (see example below) and I need an algorithm to extract the vertices (X, Y) coordinates and the egdes (i.e., a list that indicates which vertices are connected). The Edges can be of the form of a boolean true/false for each vertex pair or simply a list of vertex pairs that are connected. Any ideas welcome. For example, I would like a function (or series of functions) which input the image and output two lists: Vertices : Vertex 1: X = 1, Y = 2 Vertex 2: X = 3, Y

问题 I have a JPG, BMP, or SVG image (see example below) and I need an algorithm to extract the vertices (X, Y) coordinates and the egdes (i.e., a list that indicates which vertices are connected). The Edges can be of the form of a boolean true/false for each vertex pair or simply a list of vertex pairs that are connected. Any ideas welcome. For example, I would like a function (or series of functions) which input the image and output two lists: Vertices : Vertex 1: X = 1, Y = 2 Vertex 2: X = 3, Y

问题 I would like to resize a 512X512 image into 363X762 image which will be larger than the original image(of size 512X512). Those extra pixel values must be different values in the range of 0-255. I tried the following code: I=imread('photo.jpg'); %photo.jpg is a 512X512 image B=zeros(363,726); sizeOfMatrixB=size(B); display(sizeOfMatrixB); B(1:262144)=I(1:262144); imshow(B); B(262155:263538)=0; But I think this is a lengthy one and the output is also not as desired. Could anyone suggest me with

问题 Hi sorry for being annoying by rephrasing my question but I am just on the point of discovering my answer. I have an array of int composed of RGB values, I need to decompose that int array into a byte array, but it should be in BGR order. The array of int composed of RGB values is being created like so: pix[index++] = (255 << 24) | (red << 16) | blue; 回答1: C# code // convert integer array representing [argb] values to byte array representing [bgr] values private byte[] convertArray(int[]