Most voted "image" questions
An image is the visual representation of an object through techniques of photography, painting, drawing, video or other disciplines.
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6
votes1
answer316
viewsCapture joint position on X,Y,Z axes with Kinect V2
I need to extract the position of the joints from a recording and/or in real time, and convert to database format and/or file (txt). Similar to what is done in this video, but instead of displaying…
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6
votes2
answers532
viewsAdvanced image optimization and compression on web servers without using external services
How to do even more optimized compression than you can achieve with tools like ImageMagick and libgd (GD) without generating WEBP image? Some services such as https://tinypng.com/ and…
image optimizing unix image-compression image-processingasked 9 years, 6 months ago Emerson Rocha 3,710 -
6
votes1
answer2772
viewsHow to get profile image via authentication using facebook php API
I would like to know how to copy an image from a link without extension, IE, I’ve used several methods that work for images with extension, but no extension I can not yet, where I will use to copy…
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6
votes1
answer902
viewsHow to get information from inside the image in PHP?
I need to get the information inside the image with PHP, information like: Trademarks (or tags), Title, Comments, Authors and Copyright. Does anyone know how to get this information using PHP?…
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6
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answer22028
viewsAdd photo in excel spreadsheet from local folder
I have a spreadsheet in Excel with a list of people. For each person I have a code. In a local folder I have photos of these people and the file name of the photos is the code of the person. Do you…
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6
votes1
answer285
viewsGet mouse position in percentage by clicking on image
I have an image on the screen and I need to click on the image and know the position where I clicked on the X and Y of the image. For example, I clicked on the center of the image, then the X would…
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5
votes2
answers1944
viewsLoad Bootstrap Carousel
I’m developing a portal, with Bootstrap (3.1). For this I put a similar bootstrap Carousel on HEADER of the page and the content just below that Carousel. This is where the problem occurs, when…
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5
votes2
answers2231
viewsShow image and upload an input
Hi, I would like to know how to get the path of an image contained in the value of a file type input. I am using the following code: $(document).on("change",'#Upload',function(){ var…
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5
votes2
answers6687
viewsHow to Save Path of a Photo Taken from Camera on Phone in Path or String
I need to take the path that was saved the image and save it so that whenever I launch the app appears the image in an Imageview. my code is this public void onClickCamera(View v){ Intent…
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5
votes2
answers3756
viewsHow to save the path of an image in the Database?
I’m using JDBC and picking up an image to save in the database. However I want to save the image in the hard drive and save in the database only the way (path) hers. I wanted to know which is the…
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5
votes2
answers315
viewsCan I put an image of the internet on an Imagebutton?
It is possible to create a imageButton and within it put an image of internet. I can do that with webView, but it is possible to do with the imageButton?…
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5
votes2
answers926
viewsSaving Base64 Image with ADODB.Stream
After converting an image to Base64 using Html5 and canvas, send the string to ASP Classic and there I must save this image in a certain directory. I’m using the following code: base64String =…
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5
votes1
answer723
viewsProblem loading image in HTML (Performance)
While the entire DOM parser process is blocked, this prevents the rendering of the rest of the page. And this if applied to each page script tag. A way that I found to "circumvent" this problem was…
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5
votes1
answer182
viewsCan you calculate the diagonal on canvas?
I need to draw a square with Canvas in an image. This image comes from the database, where it has different dimensions. I’m able to draw the square in the center of the image, but if the image is…
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5
votes2
answers2326
viewsSet link image with Facebook Meta-tags Open Graph
I’m working on a blog of a friend of mine and when I open a post, copy the link and paste on facebook the first image that appears is her photo in another div inside the sidebar on the right side of…
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5
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answer312
viewsCapture image by url
I have the following url: http://ddragon.leagueoflegends.com/cdn/6.3.1/img/champion/{{name}}. png Replacing the word nome by a specific name and navigating to the page in question the site shows an…
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5
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answers2000
viewsHow do I get a Facebook profile picture?
I’m having trouble downloading the profile photo. When I add this line, I start the id: userIds2 = profile.getId(); Class public class MainFragment extends android.support.v4.app.Fragment { private…
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5
votes2
answers818
viewsPixel distribution algorithm
Well, lately I’ve been thinking about algorithms to create random maps/ images and I came up with a question that I’m going to post here for you to clarify. Suppose I have green and yellow pixels.…
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5
votes1
answer3875
viewsHow do I save an image to the database in Sqlite?
How do I save an image to Sqlite? I ask you to be as specific as possible because I don’t have much experience. In case I want to include a table row to save the image. import br.gestaoBd.Login;…
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5
votes1
answer504
viewsAngularjs - What is the best practice when uploading images?
I implemented this solution to upload images: MaquinaResource.save($scope.maquina, function (data, responseHeaders) { var formDataImage = new FormData(); for(var i = 0 ; i < $scope.images.length;…
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5
votes1
answer110
viewsInsert image with kableExtra function::spec_image( )
library(tidyverse) library(kableExtra) Suppose the following dataset: games <- tibble(logo = "", nome = c("Joao", "Pedro", "Geovanna"), medalha = c("Gold", "Silver","Bronze")) I want to add…
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4
votes1
answer87
viewsQvector to Qimage
I have to turn one QVector 2d in a QImage to display the image on a label. The QVector in the case of an array of integers with a value of 0 to 255 representing an image in PGM or PPM, this vector…
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4
votes1
answer9073
viewsSend and receive image via Webservice
I’m developing an app where I need to convert an image to JSON and send it to a Webservice. Later I will need to perform the reverse path, IE, receive a JSON image of a Webservice to present it to…
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4
votes2
answers396
viewsHow to optimize the color palette of a Gif?
I have a method that generates images through an array of bytes that I take from the database. The generated files are between 15 and 130 kb in gif format, they were bigger but slightly decreases…
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4
votes2
answers480
viewsRemove the original image from the server after Wordpress generates the thumbnails
I need to remove the original image that gives rise to Wordpress thumbnails after thumbnails are generated. I have 3 sizes of Thumbs that I use, but to avoid that the server is left with unnecessary…
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4
votes2
answers509
viewsHow to read the width and height of a physical image file?
How to get the width and height of a physical image file?
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4
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answers40440
viewsHow to resize image to container size?
I have a div with 1184x308px and I want to place inside images that are dynamic. Since images can be loaded with any dimension, how can I adjust the dimensions of the div?…
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4
votes1
answer2174
viewsImage with Transparent Background
I wonder if it is possible to upload an image and make certain part of the image (the background) transparent. 'Cause I’d like to superimpose that image. The dummy is the fixed background image, and…
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4
votes1
answer922
viewsHow to display a specific image?
I am making a system of films that register the poster of the film and I want that when generate the report with all the registered movies, it shows me the image of the poster saved in the bank and…
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4
votes1
answer908
viewsCheck area size on Canvas
I have a code that when opening the report information, is created in Canvas a rectangle on top of each image. However, these images have different sizes, but the canvas remains the same size. I…
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4
votes1
answer4352
viewsHow to access the public Storage directory in Laravel 5.3?
I need to access images saved in the directory /storage/app/public in views, but I can’t, I have a 404. Here’s what I’m doing: <div class="row"> <img src="../storage/app/public/3.jpg">…
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4
votes2
answers2249
viewsShould we use SVG or PNG icons for websites?
Is it better to use icons in SVG or PNG formatting for websites? Why?
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4
votes2
answers662
viewsConvert HTML as image
I own a string with the page’s HTML, is there any way to save it as an image? Render the whole page as an image, and if possible, store it in an MemoryStream.
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4
votes1
answer904
viewsGrab the image of a Wordpress post from an external file
I have the titles of my last posts, but I also need to search and display the images along with the title. This is a file outside the Wordpress folder, a static page I made in HTML and CSS: <?php…
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4
votes2
answers293
viewsChange System Logo
I am creating in a system that I am developing for our client, a function where it allows the same to upload the logo and cut the same, then when it saves I am trying to load the image that was…
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4
votes0
answers72
viewsApply a Transform with perspective
I would like to make the selection by perspective in a imageview. Where I select the 4 corners of the image and cut, following this idea: I searched all day and found little thing, I found this link…
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4
votes2
answers525
viewsNullpointerexception in java. Save image in bin folder for the software to run error-free?
I’m developing a project in java and placing images in jLabels, however, every time I run the program, it appears a message "Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException"…
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4
votes2
answers947
viewsHow to convert gray image to RGB?
To convert a RGB image to grayscale is relatively easy, just do a linear( or average) combination of the 3 channels. For example : Gray = 0.3*R +0.59*G +0.11*B By the expression above you get a…
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4
votes1
answer259
viewsproblem with vectors in android studio
I’m having trouble inserting vectors in android studio my project was created in api21 (5.0), I am testing on a 7.0 device and this is all ok , working perfectly, but an error occurred when running…
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4
votes0
answers818
viewsImage Resolution created with canvas
Good afternoon to all! I’m developing an application that scans a multi-digital file, where it is possible for the user to make cuts to these fingerprints and then save them to the BLOB database. To…
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4
votes1
answer372
viewsWhat formats are used to represent values (color, contrast, brightness) in digital images?
What I want to do is: recognize pixel patterns in a file, or know how Assembler treats it (to make it easier to recognize these patterns). Always wanted to create some application to manipulate…
image image-processing bitmap image-compressionasked 7 years, 10 months ago Paulo Sérgio Duff 1,201 -
4
votes1
answer3271
viewsIs it possible to save the canvas as an image, and send it to the server?
Let’s say I have a code that looks like this: <html> <head> <style> .centralizado { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); } </style>…
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4
votes2
answers3068
viewsConvert image to Base64 using Vuejs?
I have a <input type="file /> in Vuejs and when I select an image I want it to be converted into base64, because I will save the images in the database only in base64. What would be the method…
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4
votes1
answer111
viewsHow to put a border / Stroke in an <image> in an SVG?
I need to add one stroke around a <image> within a <svg>. But nothing happens when you add the value to that tag. See below what happens: when I use on <image> does not work, but…
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4
votes1
answer462
viewsSave Image in Database
In my system there is a registration of Professional who has the option to save the photo of Professional also, at the moment I am doing a photo conversion to Base64 with Javascript in the front-end…
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3
votes2
answers646
viewsHow do I convert an Html string into an image file?
I have a problem in Itextsharp to put certain HTML in the PDF, because it has some limitations in relation to CSS. So I thought of converting HTML into image and simply attaching it to my document.…
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3
votes1
answer227
viewsUsing Cycle2 and "picturefill" together
I created a slideshow responsive using Cycle2. Because the images are very large, I need to upload a smaller file of each image when the page opens on mobile devices. So I thought I’d use the…
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3
votes1
answer697
viewsLoad the image bytecode in String and convert to Bitmap in Flash AS3
I need to load the image bytecodes inside a String and then convert to Bitmap. I am using the code below but without success: var urlLoader:URLLoader = new URLLoader(); urlLoader.load(new…
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3
votes2
answers931
viewsCalling file at each Timthumb run
Use the Timthumb to upload images and resize them. However, at the end of the project, making modifications to the .htaccess for optimization (enabling gzip, Minify, Leverage browser caching and…
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3
votes1
answer288
viewsView saved BMP image in Oracle in PHP
How to recover a BMP image saved in an Oracle database and display it on the screen Unfortunately I cannot store the image files on the server and save in the database only the way.