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Swift: how to display image from html source

|▌冷眼眸甩不掉的悲伤 提交于 2021-02-08 10:38:29
问题 How can I display image from html source in some of sites in swift 2.2? Actually I don't have any JSON or XML. The important thing is that I have to use regex. I tried this: if htmlContent != nil { let htmlContent = (item?.htmlContent)! as NSString var imageSource = "" let rangeOfString = NSMakeRange(0, htmlContent.length) let regex = try! NSRegularExpression(pattern: "(<img.*?src=\")(.*?)(\".*?>)", options: [.CaseInsensitive]) if htmlContent.length > 0 { let match = regex.firstMatchInString

Google apps script: How to horizontally align an inlineImage

淺唱寂寞╮ 提交于 2021-02-08 09:29:45
问题 I have the following code, which is part of a larger program. I am trying to insert an image from my Google drive into a google doc and have it resized and centered. So far I am able to get the program to insert the image and resize it, but I do not know how to center an inlineImage. I am new to using google apps script and I have basically been copying other people's examples and modifying them. Your help would be appreciated. Let me know if I need to clarify. Again, I am trying to CENTER

iOS - jagged edges on text and image. Why? and how to fix?

送分小仙女□ 提交于 2021-02-08 09:24:12
问题 Why are there jagged edges on some of the texts and images in the app i am developping? I have tried to go through the frames, and i have not used a division to set a frame (so the 1.134234 is not an issue), and I have tried different antialiasing methods. Does anybody have an idea? See attached for an example. EDIT: The images become jagged, when downscaled. So either resize them to fit the size directly in the actual file, OR via code as suggested in other StackOverflow questions. Now

iOS - jagged edges on text and image. Why? and how to fix?

跟風遠走 提交于 2021-02-08 09:23:31
问题 Why are there jagged edges on some of the texts and images in the app i am developping? I have tried to go through the frames, and i have not used a division to set a frame (so the 1.134234 is not an issue), and I have tried different antialiasing methods. Does anybody have an idea? See attached for an example. EDIT: The images become jagged, when downscaled. So either resize them to fit the size directly in the actual file, OR via code as suggested in other StackOverflow questions. Now

Grayscale image from binary data

丶灬走出姿态 提交于 2021-02-08 08:58:22
问题 I'm working on some simple viewer app for CT images. Let's say I have array of 262144 Int16 values. Each value represents one pixel in 512x512 image. Each pixel has value from 0 to 4096 where 0 is black and 4096 is white. Is there any elegant, simple solution to display this image in Visual Studio Picture Box? Maybe some kind of MemoryReader or Stream? I've tried to search for some solution but found only topic about retrieving binary data from databases. 回答1: A good way and with a good

How can I apply a colortable to my grayscale 8 bit image and convert it correctly in Qt?

╄→尐↘猪︶ㄣ 提交于 2021-02-08 08:56:19
问题 I would like to convert my grayscale_8 QImage to an Indexed_8 with a colortable. I found have found and tested functions that generate a colormap (MATLAB jet) accurately -- here is my code: for (double i = 0; i < 256; ++i) { double hi = 255; double lo = 0; double r = -4.0 * std::abs(i - 255.0 * 3.0 / 4) + 255.0 * 3.0 / 2; double g = -4.0 * std::abs(i - 255.0 * 2.0 / 4) + 255.0 * 3.0 / 2; double b = -4.0 * std::abs(i - 255.0 * 1.0 / 4) + 255.0 * 3.0 / 2; CP->colortable.append(qRgb(r < lo ? lo

Gh-pages relative path not found

喜夏-厌秋 提交于 2021-02-08 08:54:35
问题 Hello i try to deploy my second project website on gh-pages it's seems working but all of my images are not showing, i try different path but still not working i'm new on GitHub hope to fixed it soon thank you. here is my website repo https://github.com/rcode321/rafaelmendozasite 回答1: Check first if using relative path is enough in your gh-pages index.html file <img class="my-image main" src="img/mypix2.jpg" alt=""> instead of <img class="my-image main" src="/dist/img/mypix2.jpg" alt=""> The

Behaviour of affine transform on 3D image with non-uniform resolution with Scipy

孤街浪徒 提交于 2021-02-08 08:43:18
问题 I'm looking to apply an affine transformation, defined in homogeneous coordinates on images of different resolutions, but I encounter an issue when one ax is of different resolution of the others. Normally, as only the translation part of the affine is dependent of the resolution, I normalize the translation part by the resolution and apply the corresponding affine on the image, using scipy.ndimage.affine_transform. If the resolution of the image is the same for all axes, it works perfectly,

Beautiful Soup: get picture size from html

丶灬走出姿态 提交于 2021-02-08 08:14:04
问题 I want to extract the pictures' widths and heights using Bueatiful Soup. All pictures have the same code format: <img src="http://somelink.com/somepic.jpg" width="200" height="100"> I can extract the links easily with for pic in soup.find_all('img'): print (pic['src']) But for pic in soup.find_all('img'): print (pic['width']) is not working for extracting sizes. What am I missing? EDIT: One of the pictures in the page does not have the width and height in the html code. Did not notice this at

Beautiful Soup: get picture size from html

心不动则不痛 提交于 2021-02-08 08:12:25
问题 I want to extract the pictures' widths and heights using Bueatiful Soup. All pictures have the same code format: <img src="http://somelink.com/somepic.jpg" width="200" height="100"> I can extract the links easily with for pic in soup.find_all('img'): print (pic['src']) But for pic in soup.find_all('img'): print (pic['width']) is not working for extracting sizes. What am I missing? EDIT: One of the pictures in the page does not have the width and height in the html code. Did not notice this at