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问题 Building my company website and want the image to display when I share the link on facebook. The correct meta description and titles show up for each page but not the images. The facebook debugger tool keeps giving me this error and everytime I share a link it says that it has an invalid content type. I want my logo to appear for everytime I share a link on facebook so I have it extended in my base.html file. This is in my base.html page: <meta property="og:image:url" content="{% static 'img

问题 How can we extract images(only images) from PDF. I used many online tools, they all are not universal. In most of the PDF, it tools the screenshot of the whole image instead of the image. PDF link -> sg.inflibnet.ac.in:8080/jspui/bitstream/10603/121661/9/09_chapter 4.pdf 回答1: Here is some code that reads a PDF-File using pyPdf, extracts images and yields them as a PIL.Image . You need to modify it to your needs, it's just here to demonstrate how to walk the object tree. import io import pyPdf

问题 I have a main report wich includes many sub reports. In eah sub report i have an image loaded externally. My main report is loaded fine but when i try to load a subreport i get an error saying that : EnableExternalImages property is not enabled in my sub report. My question is how to enable it? i can't acess to my sub report via code behind. thanks. 回答1: When loading an image from a file location you need to specify "File:" in front of the absolute file path for the image value property. =

问题 How can we extract images(only images) from PDF. I used many online tools, they all are not universal. In most of the PDF, it tools the screenshot of the whole image instead of the image. PDF link -> sg.inflibnet.ac.in:8080/jspui/bitstream/10603/121661/9/09_chapter 4.pdf 回答1: Here is some code that reads a PDF-File using pyPdf, extracts images and yields them as a PIL.Image . You need to modify it to your needs, it's just here to demonstrate how to walk the object tree. import io import pyPdf

问题 I have a main report wich includes many sub reports. In eah sub report i have an image loaded externally. My main report is loaded fine but when i try to load a subreport i get an error saying that : EnableExternalImages property is not enabled in my sub report. My question is how to enable it? i can't acess to my sub report via code behind. thanks. 回答1: When loading an image from a file location you need to specify "File:" in front of the absolute file path for the image value property. =

问题 I have saved an image to a file and when I want to read the file and set the image to the imageView , I face with OOM exception. This is my code : File tempImageFile = new File(Environment.getExternalStorageDirectory().getPath() + "/AHOORATempImage"); FileOutputStream fileOutputStream = new FileOutputStream(tempImageFile); fileOutputStream.write(data); fileOutputStream.flush(); fileOutputStream.close(); imageView.setImageURI(Uri.fromFile(tempImageFile)); and This is part of error in logCat :

问题 I have a main report wich includes many sub reports. In eah sub report i have an image loaded externally. My main report is loaded fine but when i try to load a subreport i get an error saying that : EnableExternalImages property is not enabled in my sub report. My question is how to enable it? i can't acess to my sub report via code behind. thanks. 回答1: When loading an image from a file location you need to specify "File:" in front of the absolute file path for the image value property. =

问题 I have code that loads and saves the image in two different ways - first using openCV, the second using PIL. import cv2 from PIL import Image img = cv2.imread("/home/myname/png/image.png") cv2.imwrite("/home/myname/png/image_save.png", img) img = Image.open("/home/myname/png/image.png") img.save("/home/myname/png/image_save_pil.png") The original image is 204.6 kB in size. The result obtained with openCV is 245.0 kB, the result of PIL is 204.6 kB. Why does the image saved with openCV have a

问题 I am making a mining tapping game and I want to display a hammer wherever the user taps. I mean, wherever the user taps the hammer image will stay on for one second. Is there a way to do it? My example code is below: struct Level1: View { @State var tapScore = 0 @State var showingMinedHammer = false func showMinedHammer() { self.showingMinedHammer = true DispatchQueue.main.asyncAfter(deadline: .now() + 1) { self.showingMinedHammer = false } } func mine() { tapScore += 1 showMinedHammer() }

问题 I'm trying to mask an image in swift. Here's my code: (Normally, originalImg is an image that is loaded from UIImagePickerController and then cropped by UIGraphicsGetImageFromCurrentImageContext() , and makedImage is an image that is drawn by the user, created by UIGraphicsGetImageFromCurrentImageContext() ) func imageMasking(_ originalImg: UIImage, maskImage: UIImage) -> UIImage { let cgMaskImage = maskImage.cgImage! let mask = CGImage(maskWidth: cgMaskImage.width, height: cgMaskImage.height