crop

问题 I need to create an imageview of this particular shape in Android. If cropping an image in this shape is possible, then also its fine. Please help me out with it? 回答1: This will be the complete set <FrameLayout android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:id="@+id/imageView" android:layout_width="match_parent" android:layout_height="match_parent" android:scaleType="fitXY" android:src="@drawable/gohan" /> <ImageView android:layout_width="match

问题 I'm new to SwiftUI. I guess everyone is at this point. I've been an app developer for about 6 years now and I feel stupid asking this question on StackOverflow. But I looked everywhere. How do I center crop an image in an ImageView in SwiftUI? I know there's an option to change the aspect ratio but I only see fit and fill. I just want the imageView to centerCrop(android term) the image. Does anybody know? 回答1: Android's ImageView.ScaleType documentation describes CENTER_CROP as: CENTER_CROP

问题 Hello Stackoverflow community! I dread having to ask questions, but there seems to be no efficient way to take a single input video and apply a matrix transformation/split the video into equal sized pieces, preferably 4x4=16 segments per input. I tried using all the libraries such as ffmpeg and mencoder, but having 16 outputs can be as slow as 0.15x. The goal of my project is the split the video into 16 segments, rearrange those segments and combine back into a final video; later reversing

问题 Hello Stackoverflow community! I dread having to ask questions, but there seems to be no efficient way to take a single input video and apply a matrix transformation/split the video into equal sized pieces, preferably 4x4=16 segments per input. I tried using all the libraries such as ffmpeg and mencoder, but having 16 outputs can be as slow as 0.15x. The goal of my project is the split the video into 16 segments, rearrange those segments and combine back into a final video; later reversing

问题 Hello Stackoverflow community! I dread having to ask questions, but there seems to be no efficient way to take a single input video and apply a matrix transformation/split the video into equal sized pieces, preferably 4x4=16 segments per input. I tried using all the libraries such as ffmpeg and mencoder, but having 16 outputs can be as slow as 0.15x. The goal of my project is the split the video into 16 segments, rearrange those segments and combine back into a final video; later reversing

问题 so I've been trying to code a Python script, which takes an image as input and then cuts out a rectangle with a specific background color. However, what causes a problem for my coding skills, is that the rectangle is not on a fixed position in every image (the position will be random). I do not really understand how to manage the numpy functions. I also read something about OpenCV, but I'm totally new to it. So far I just cropped the images through the ".crop" function, but then I would have

问题 Given an image with alpha channel (transparency) I would like to remove any blank space between the image boundaries and the actual image. This should be done in a backgound task or with a loading screen, with an acceptable running time to not cripple the user experience. How can I achieve this result? 回答1: I had difficulties to find best practices or even advices to solve my problem. Based on this anwer by JannGabriel, who crops the image right and bottom by reducing image size, i managed to

问题 I have a custom camera app which has a centered rectangle view, as you can see below: When I take a picture I want to ignore everything outside the rectangle. And this is my XML layout: <?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height=

来源： https://stackoverflow.com/questions/9636350/using-imagemagick-how-can-i-slice-up-an-image-into-several-separate-images

来源： https://stackoverflow.com/questions/9636350/using-imagemagick-how-can-i-slice-up-an-image-into-several-separate-images