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Loading non-power-of-two textures in Vulkan

由 孤人 提交于 2021-02-09 11:47:37
问题 My 2D texture loader works fine if my texture dimensions are power-of-two, but when they are not, the texture data displays as skewed. How do I fix this? I assume the issue has something to do with memory alignment and row pitch. Here's relevant parts of my loader code: VkMemoryRequirements memReqs; vkGetImageMemoryRequirements( GfxDeviceGlobal::device, mappableImage, &memReqs ); VkMemoryAllocateInfo memAllocInfo = {}; memAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; memAllocInfo

IOS Image not appearing

由 試著忘記壹切 提交于 2021-02-09 11:44:08
问题 I'm having trouble with showing an image on an iPhone. Currently, I have a pretty large image, around 9000x4500. I'm trying to show this image resized in an iPhone. I'm working with the simulator now and it just will not show up. I have some pretty simple code here (using phonegap): <!DOCTYPE HTML> <html> <head> <script charset="utf-8" src = "jquery-1.10.1.min.js"></script> <script charset="utf-8" src = "cordova.js"></script> <style> img.Image { width: 100%; max-width:100%;} </style> </head>

Java program to download images from a website and display the file sizes

由 北城以北 提交于 2021-02-09 11:12:15
问题 I'm creating a java program that will read a html document from a URL and display the sizes of the images in the code. I'm not sure how to go about achieving this though. I wouldn't need to actually download and save the images, i just need the sizes and the order in which they appear on the webpage. for example: a webpage has 3 images <img src="dog.jpg" /> //which is 54kb <img src="cat.jpg" /> //which is 75kb <img src="horse.jpg"/> //which is 80kb i would need the output of my java program

Java program to download images from a website and display the file sizes

由 喜夏-厌秋 提交于 2021-02-09 11:08:28
问题 I'm creating a java program that will read a html document from a URL and display the sizes of the images in the code. I'm not sure how to go about achieving this though. I wouldn't need to actually download and save the images, i just need the sizes and the order in which they appear on the webpage. for example: a webpage has 3 images <img src="dog.jpg" /> //which is 54kb <img src="cat.jpg" /> //which is 75kb <img src="horse.jpg"/> //which is 80kb i would need the output of my java program

How to extract only outer contours from an image (OpenCV)

由 给你一囗甜甜゛ 提交于 2021-02-09 09:21:36
问题 I am trying to extract digits from the below image using simple OpenCV contours approach, but I am getting overlapping bounding boxes over contours cv2.RETR_EXTERNAL should return only outer contours in the hierarchy but it’s not working as can be seen from the below output Code : from matplotlib import pyplot as plt import cv2 img = cv2.imread('image.png', 0) _, contours, _ = cv2.findContours(img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) imgRGB = cv2.cvtColor(img.copy(), cv2.COLOR

Use PHP to prep SVG file for use in img tag data uri

由 瘦欲@ 提交于 2021-02-09 08:51:16
问题 I'm using PHP. I would like to use file_get_contents to get an .svg file, and convert it for use as a data uri in an image tag. Something along these lines: Controller: $mylogo = file_get_contents(FCPATH.'app/views/emails/images/mylogo.svg'); View: <img src="data:image/svg+xml;utf8,<?= $mylogo ?>"> I need to convert it into something (base64?) as right now it is just dumping it in tags and all and though the image does appear, it makes a mess of the img tag surrounding it. 回答1: <svg> elements

Use PHP to prep SVG file for use in img tag data uri

由 霸气de小男生 提交于 2021-02-09 08:50:09
问题 I'm using PHP. I would like to use file_get_contents to get an .svg file, and convert it for use as a data uri in an image tag. Something along these lines: Controller: $mylogo = file_get_contents(FCPATH.'app/views/emails/images/mylogo.svg'); View: <img src="data:image/svg+xml;utf8,<?= $mylogo ?>"> I need to convert it into something (base64?) as right now it is just dumping it in tags and all and though the image does appear, it makes a mess of the img tag surrounding it. 回答1: <svg> elements

Use PHP to prep SVG file for use in img tag data uri

由 女生的网名这么多〃 提交于 2021-02-09 08:47:05
问题 I'm using PHP. I would like to use file_get_contents to get an .svg file, and convert it for use as a data uri in an image tag. Something along these lines: Controller: $mylogo = file_get_contents(FCPATH.'app/views/emails/images/mylogo.svg'); View: <img src="data:image/svg+xml;utf8,<?= $mylogo ?>"> I need to convert it into something (base64?) as right now it is just dumping it in tags and all and though the image does appear, it makes a mess of the img tag surrounding it. 回答1: <svg> elements

change image source using javascript onclick with effect

由 爷，独闯天下 提交于 2021-02-08 21:51:06
问题 I want to change the source of image with javascript,along with some effect like fadeout() or something like that.But I need to change source for more than one image,say 3 images,with fade effect or any other effect. HOW?? Below is the code i'm using but its only for 2 images how do i use for multiple images: <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Untitled Document</title> <script src="jquery-1.5.1.js"

unwrap picture of a half cylinder in MATLAB

由 随声附和 提交于 2021-02-08 17:02:00
问题 My problem is as follows: I have the picture of a half cylinder taken from a horizontal perspective and it has square grid lines on it, so I was wondering how can I implement in MATLAB to unwrap this half cylinder so all my grid cells become the same size? I know I will loose lots of resolution in the edge cells and a simple linear interpolation should do the trick, but I do not know how to tell MATLAB to do this. Also I know the geometrical properties of the cylinder, radius and height. Any
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