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R: Error in as.vector(x, “character”): cannot coerce type 'externalptr' to vector of type 'character'

由 别来无恙 提交于 2021-01-29 10:40:38
问题 I am using the R programming language. I am trying to combine a HTML file and a JPG Image file together. My code looks something like this: library(plotly) library(shiny) library(magick) #create widget_1 widget_1 = plot_ly(iris, x = ~Sepal.Length, type = "histogram", nbinsx = 20) #upload some jpg image from your computer into R my_image = image_read("my_image.jpg") doc <- htmltools::tagList( div(widget_1, style = "float:left;width:50%;"), div(my_image,style = "float:left;width:50%;") )

How to create fade in/out transitions between elements of image array in Vanilla Javascript - non background image

由 懵懂的女人 提交于 2021-01-29 10:37:56
问题 I was recently playing with some Javascript - and I was trying a create a small slideshow using only Vanilla Javascript with no libraries such as jQuery - in fact in this small project I want to learn how to use and implement it in real website. Here is my HTML markup: <body onload="changeImage()"> <div class="logo"> <img src="logo.png" class="logo_image" id="imageholder"/> </div> My idea was to use a HTML div container with img tag in it - in each iteration in Javascript program the image

Read image from private GitHub repository programmatically using C#

由 谁说胖子不能爱 提交于 2021-01-29 10:16:25
问题 Need to store the image from a private git repository to a blob using C#. Tried with below code but getting 404 errors. I am using the below code from C# example of downloading GitHub private repo programmatically var githubToken = "[token]"; var url = "https://github.com/[username]/[repository]/archive/[sha1|tag].zip"; var path = @"[local path]"; using (var client = new System.Net.Http.HttpClient()) { var credentials = string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}:",

Sending an Image as attachment using sp_send_dbmail

由 白昼怎懂夜的黑 提交于 2021-01-29 10:11:25
问题 I am trying to send an image as attachment using sp_send_dbmail The raw data for the jpeg is stored in a table in 'Image' column which is of type varchar(max). [Is converted from an array of bytes to base64string in sourceCode , not the best practice but it works] I am not allowed to save the image into a root directory inside the database server My question is : ¿ Is possible to convert the base64string to Image and send it as attachment inside sqlserver? Any suggestion is very appreciated.

How to scrape all the image urls from a Kickstarter webpage?

由 走远了吗. 提交于 2021-01-29 09:47:57
问题 I want to scrape all the image urls from this Kickstarter webpage, but the following code does not give all the images: url = 'https://www.kickstarter.com/projects/1878352656/sleep-yoga-go-travel-pillow?ref=category_newest' page = requests.get(url) soup = BeautifulSoup(page.text, 'html.parser') x = soup.select('img[src^="https://ksr-ugc.imgix.net/assets/"]') print(x) img_links = [] for img in x: img_links.append(img['src']) for l in img_links: print(l) 回答1: import requests from bs4 import

Remove Background from Image - Python

由 懵懂的女人 提交于 2021-01-29 09:39:15
问题 I am trying to remove the black background from an image using OpenCV, but I am unable to remove the pixels to capture just the main imagery without the black background. Here is the code I am using, along with the original input image. import numpy as np import cv2 from matplotlib import pyplot as plt img = cv2.imread('C:\\Users\\mdl518\\Desktop\\input.png') mask = np.zeros(img.shape[:2],np.uint8) bgdModel = np.zeros((1,65),np.float64) fgdModel = np.zeros((1,65),np.float64) rect = (0,0,1035

Python EncodeDecode error: UnicodeDecodeError: 'charmap' codec can't decode byte [duplicate]

由 怎甘沉沦 提交于 2021-01-29 09:29:09
问题 This question already has answers here : error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte (18 answers) Closed 1 year ago . I'm trying to manipulate images but I can't get rid of that error : fichier=open("photo.jpg","r") lignes=fichier.readlines() Traceback (most recent call last): File "<ipython-input-32-87422df77ac2>", line 1, in <module> lignes=fichier.readlines() File "C:\Winpython\python-3.5.4.amd64\lib\encodings\cp1252.py", line 23, in

xamarin forms image not showing image in listview by URL sometimes

由 纵饮孤独 提交于 2021-01-29 09:17:58
问题 I'm using xamarin forms V3.4.0.1029999 I have a listview that it contains Image control. I Pass image source by an string Property. sometimes listview wont show image By URL. i mean for example it shows 39 items but 2. Sometimes it wont load image from URL. what should i do to always load image? 回答1: I would suggest you use FFImageLoading's CachedImage for this. It is a library that is vastly accepted by the community and is great with caching and has memory handling options as well. You can

Onclick Image button - Logic not making sense [duplicate]

由 北慕城南 提交于 2021-01-29 09:05:52
问题 This question already has answers here : Difference between object.src and object.getAttribute('src') (3 answers) Closed 3 months ago . I'm having a very confusing time with this very simple onClick function in Javascript/html. I know there are many questions on this but couldn't quite find an answer given what my script does (Or doesn't in this case). It should be simple but for some reason the logic is just not working as I expect it too. <h1>The onclick Event</h1> <img id="onoff" onclick=

SwiftUI: How to find the height of an image and use it to set the size of a frame

由 对着背影说爱祢 提交于 2021-01-29 08:34:04
问题 So I've been trying to figure out how to find the height of an image in SwiftUI for a while now with no success. Essentially I have portrait/landscape images, which the portrait ones I want to display at about 600 pt tall, whereas the landscape images I want to display so the width of the image is used, so the height is whatever. That being said, I'm wanting it inside of a GeometryReader, as the offset I am using uses it so that when you scroll down, the image doesn't scroll, but if you
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