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问题 The Fourier transform of the convolution (with stride 1) of two images is equivalent to point-wise multiplication of their individual Fourier transforms. I need to perform stride-'n' convolution using the above FFT-based convolution. For some reasons I need to operate in the frequency domain itself after taking the point-wise product of the transforms, and not come back to space domain by taking inverse Fourier transform, so I cannot drop the excess values from the inverse Fourier transform

问题 this is my first post so please let me know if i dont relay the question clearly. i am trying to open a (black and white) jpeg or png image file as an array in dev c++ so that i can isolate the place of the white pixels. the pointers, and loops for the isolation i understand. however, opening the image file has not worked and have been unable to find an example that i can use. besides the given #include "cstdlib" #include "iostream" #include "stdio.h" i have no other header files. i know

问题 I've attempted the solution in the following. Inserting an Online Picture to Excel with VBA Unfortunately I get a run-time error '1004' "Unable to get the Insert property of the Picture class" which stops on the following code : Set myPicture = ActiveSheet.Pictures.Insert(pic) Could this be due to my Office version 2016 (64bit) ? If not, are there any suggestions of how I might get embed images to adjacent cells in column AK using the image urls from column AJ ? Thanks in advance 回答1: There's

问题 I load an image on my flutter app like this: Image.asset(imageFilePath, fit: BoxFit.cover) When I run the app on the emulator on the first run I get the following exception: I/flutter ( 7194): ══╡ EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE ╞════════════════════════════════════════════════════ I/flutter ( 7194): The following assertion was thrown resolving an image codec: I/flutter ( 7194): Unable to load asset: /data/user/0/com.example.myapp/app_flutter/888cba5135c38f7d.jpg ... The image path

问题 I load an image on my flutter app like this: Image.asset(imageFilePath, fit: BoxFit.cover) When I run the app on the emulator on the first run I get the following exception: I/flutter ( 7194): ══╡ EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE ╞════════════════════════════════════════════════════ I/flutter ( 7194): The following assertion was thrown resolving an image codec: I/flutter ( 7194): Unable to load asset: /data/user/0/com.example.myapp/app_flutter/888cba5135c38f7d.jpg ... The image path

问题 I want to construct an OpenCL 3D RGBA image from a numpy array, using pyopencl. I know about the cl.image_from_array() function, that basically does exactly that, but doesn't give any control about command queues or events, that is exposed by cl.enqueue_copy() . So I really would like to use the latter function, to transfer a 3D RGBA image from host to device, but I seem to not being able getting the syntax of the image constructor right. So in this environment import pyopencl as cl import

问题 I'm using an online service which need an image in base 64. I've done a simple form where I can upload an image, and then my php encode the image in base 64, like this : $base64Image = base64_encode(file_get_contents($_FILES['image']['tmp_name'])); I then pass it in a json array, and the other page tries to display the image with my data, but it fails (it has the missing image icon) and in Chrome console I have the error : page.php:1 GET data:image/png; base64,

问题 I use the following markup to present an image and its caption. HTML: <div class="fig-container"> <figure class="captioned-figure"> <img class="full-width" src="..."/> <figcaption> TEXT TEXT TEXT </figcaption> </figure> </div> CSS: .fig-container{ text-align: center; } .captioned-figure{ display: inline-block; min-width: 50%; } .full-width{ display: block; width: 100%; height: auto; } My goal is to have the image horizontally centered and scaled to at least 50% of the viewport, but to no more

问题 I have searched and googled a lot but can't find a simple solution to this. I want to resize the image according to its actual size and preserving the image ratio at the same time. As you can see from the following sample code, with the preserveRatio property set to true, I am able to resize the image. However, as I resize pass the actual width or height of the image, a white space will appear. How can I resize it without the appearance of the white space? package test; import javafx

问题 I need InstallShield msi background image to use in wix. I have extracted msi via 7zip but I couldn't find background image. Can anyone help me to find it? 回答1: Copyright : Not sure about the copyright issues involved, I definitely would use my own images, but if you just want to get the images for the size parameters and then modify the content, then maybe just use dark.exe to decompile the MSI to its constituent parts. See link below for WiX's own, default images on github.com. Dark.exe :