image-resizing

问题 Can anyone help me resize an image in qt without making the image pixelated. Here's my code. the result is not as good as the original quality..thanks... QImage img(name); QPixmap pixmap; pixmap = pixmap.fromImage(img.scaled(width,height,Qt::IgnoreAspectRatio,Qt::FastTransformation)); QFile file(folder+"/"+name); file.open(QIODevice::WriteOnly); pixmap.save(&file, "jpeg",100); file.close(); 回答1: You have to pass Qt::SmoothTransformation transformation mode to the scaled function like: QImage

问题 Can anyone help me resize an image in qt without making the image pixelated. Here's my code. the result is not as good as the original quality..thanks... QImage img(name); QPixmap pixmap; pixmap = pixmap.fromImage(img.scaled(width,height,Qt::IgnoreAspectRatio,Qt::FastTransformation)); QFile file(folder+"/"+name); file.open(QIODevice::WriteOnly); pixmap.save(&file, "jpeg",100); file.close(); 回答1: You have to pass Qt::SmoothTransformation transformation mode to the scaled function like: QImage

问题 Can anyone help me resize an image in qt without making the image pixelated. Here's my code. the result is not as good as the original quality..thanks... QImage img(name); QPixmap pixmap; pixmap = pixmap.fromImage(img.scaled(width,height,Qt::IgnoreAspectRatio,Qt::FastTransformation)); QFile file(folder+"/"+name); file.open(QIODevice::WriteOnly); pixmap.save(&file, "jpeg",100); file.close(); 回答1: You have to pass Qt::SmoothTransformation transformation mode to the scaled function like: QImage

问题 I am trying to create multiple images while uploading, I found a solution from This site this is exactly what I want. But sadly it only creating jpeg thumbnails. I have tried many variations to turn function for multiple image extention but keep geting errors. I realy need help. This main function which is uploading image it call createThumbnails() from functions file: require_once('function.php'); if(isset($_POST['btnSubmit']) && isset($_FILES['fupload'])) { $output['status'] = FALSE; set

问题 I am trying to create multiple images while uploading, I found a solution from This site this is exactly what I want. But sadly it only creating jpeg thumbnails. I have tried many variations to turn function for multiple image extention but keep geting errors. I realy need help. This main function which is uploading image it call createThumbnails() from functions file: require_once('function.php'); if(isset($_POST['btnSubmit']) && isset($_FILES['fupload'])) { $output['status'] = FALSE; set

问题 I am trying to create multiple images while uploading, I found a solution from This site this is exactly what I want. But sadly it only creating jpeg thumbnails. I have tried many variations to turn function for multiple image extention but keep geting errors. I realy need help. This main function which is uploading image it call createThumbnails() from functions file: require_once('function.php'); if(isset($_POST['btnSubmit']) && isset($_FILES['fupload'])) { $output['status'] = FALSE; set

问题 currently i have image upload form in which we can upload multiple image and drag this image inside the div . Please see my form <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css"> <script src="https://code.jquery.com/jquery-1.12.4.js"></script> <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> <input name="user_file[]" id="user_file" style="position: relative;overflow: hidden" multiple="" type="file"> <div class="new-multiple"></div> $(

问题 currently i have image upload form in which we can upload multiple image and drag this image inside the div . Please see my form <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css"> <script src="https://code.jquery.com/jquery-1.12.4.js"></script> <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> <input name="user_file[]" id="user_file" style="position: relative;overflow: hidden" multiple="" type="file"> <div class="new-multiple"></div> $(

问题 This question already has answers here : Basic image resizing in Ruby on Rails (5 answers) Closed 6 years ago . Like this I am currently uploading a file ( image ) in my ruby application .. I need to resize the image after uploading ... please help for resizing the image uploaded_io = params[:category][:thumb] if uploaded_io != "" name = uploaded_io.original_filename if(FileTest.exist?("#{RAILS_ROOT}/public/data/#{name}")) id = Category.maximum('id').to_s id = id.to_i+ 1 name =id.to_s+"_"

问题 I'm using the following code to try to create a tiled image with cap insets, and seeing the image below as the results in the simulator. My source image is 145x83 pixels in size, and shown here too. What am I doing wrong? SOURCE IMAGE: RESULTS IN SIMULATOR: CODE: - (void)viewDidLoad { [super viewDidLoad]; UIImage *cloudImage = [UIImage imageNamed: @"cloud.png"]; [cloudImage resizableImageWithCapInsets: UIEdgeInsetsMake(10, 10, 10, 10) resizingMode: UIImageResizingModeTile]; UIImageView