animated-gif

问题 I am trying to show a gif file in google's colab.research. I was able to save the file in the directory with the following path name /content/BrowniamMotion.gif but I don't know how to show this GIF in my notebook to present. The code to generate the GIF so far, in case someone can manipulate it not to save the GIF but rather to animate it directly into the google colab file was, # Other Brownian Motion from math import * import numpy as np import matplotlib.pyplot as plt from mpl_toolkits

问题 I'm trying to animate 2D vector with gnuplot. I want to show one line i.e, one vector at a time. My Data Structure is as follows: They x,y,u,v 2.24448 0.270645 1.00 1.00 3.24448 0.270645 0.500 1.20 I'm able to create a static plot sing following command: plot "datam.dat" using 1:2:3:4 with vectors filled head lw 3 Here is the output: Here is my question: I would like to animate and show one row (i.e,) one vector at a time , how to accomplish this in GNU plot using GIF? Thanks 回答1: Animated

问题 I want to create an animated gif in a QT project. When I scale the a QImage to AV_PIX_FMT_RGB8 directly the output looks awfull with flickering artifacts and when I scale to AV_PIX_FMT_YUV420P in between the output is dithered witch does not look much better. I found out that ffmpeg is able to produce a palette file using a filter called palettegen and then convert a movie to gif using this palette. Is there any sample c++ file out which I could use for my project or does anybody have a clue

问题 I am working on a service that can do conversions from gif to mp4 files (with ffmpeg ). My problem is some of the gifs have visible transparent areas which end up as white color when I convert them to mp4 video. To avoid that problem I am trying detect if a gif has visible transparent areas so I will avoid converting them to mp4. I tried to use getImageAlphaChannel() function from imagick. if ($imagick->getImageAlphaChannel()) { echo 'transparent image'; } else { echo 'not transparent image';

问题 I am trying to put my @2x and @3x GIF images into the Assets folder in Xcode. I have tried the following links but it didn't work for me. Link 1 and Link 2. I am currently loading the GIF files by adding them to my project bundle and accessing it using this let bundleURL = NSBundle.mainBundle() .URLForResource("phone_animation", withExtension: "gif") But I want to load them from my Assets folder. Is there a way I can do it? And how do I load them into my imageview after adding it to Assets?

问题 I am trying to put my @2x and @3x GIF images into the Assets folder in Xcode. I have tried the following links but it didn't work for me. Link 1 and Link 2. I am currently loading the GIF files by adding them to my project bundle and accessing it using this let bundleURL = NSBundle.mainBundle() .URLForResource("phone_animation", withExtension: "gif") But I want to load them from my Assets folder. Is there a way I can do it? And how do I load them into my imageview after adding it to Assets?

问题 You know that GIF files support animation, but a GIF image not necesarily must have an animation on it. Is there a way to check if a GIF image has an animation using php or java? Thanks. 回答1: Here is a little PHP script that should be able to determine if an image is an animated gif or not. I have tested it and it works for me. <?php $img="your_image"; $file = file_get_contents($img); $animated=preg_match('#(\x00\x21\xF9\x04.{4}\x00\x2C.*){2,}#s', $file); if ($animated==1){ echo "This image

问题 I want to do a gif animation with gnuplot so I wrote: set terminal gif size 1000,800 animate delay 6 set output 'foobar.gif' set xrange [0:64] set yrange [0:64] do for [i=100:5000:100] { plot sprintf('folder\name%d.dat',i) u 2:3:(20*$5):(20*$6) with vectors filled head lw 3, sprintf('folder\name%d.dat',i) u 2:3 with points pt 7 ps 2 } The problem is that, although it doesn't show any error nor warning, when I open the gif file with chrome or ie it doesn't play the gif. What's wrong with it? I

问题 I'm working on a react native app which works with a lot of animated GIFs. I've tried using the react native documented library com.facebook.fresco:animated-gif:1.3.0 for animated gif support, yet, the performance of the default Image component is terrible, but using FastImage package I am able to get, at maximum, 10 gifs. As there is the possibility of integrating the native libraries in React Native, I was wondering what could a solution to this problem? 回答1: I've tested a couple ways to

问题 I am trying to rotate an animated gif stored in an ImageIcon using an AffineTransform. The result is that the image does not get drawn. Here's my code: AffineTransform trans = AffineTransform.getRotateInstance(imgYaw, img.getImage().getWidth(null) / 2, img.getImage().getHeight(null) / 2); AffineTransformOp transo = new AffineTransformOp(trans, AffineTransformOp.TYPE_BILINEAR); BufferedImage bufferedimg = new BufferedImage(img.getImage().getWidth(null), img.getImage().getHeight(null),