ferns | random ferns implementation | Computer Vision library
kandi X-RAY | ferns Summary
kandi X-RAY | ferns Summary
This software demonstrates Fern based keypoint matching for planar object detection. It also includes template based tracking code for applications that demand even faster operation.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of ferns
ferns Key Features
ferns Examples and Code Snippets
Community Discussions
Trending Discussions on ferns
QUESTION
I'm currently at the end of my rope dealing with a frustrating program, and I'm posting here for help for the first time. Using beautifulsoup4, I'm attempting to, in short, scrape a website with no reliable HTML classes or IDs to work with. All I have is the anchor element and, for the example I'm providing below, I am attempting to grab the phrase "Where the Red Fern Grows" using only the the lowercase text "red fern". So in conclusion, I am attempting to identify and collect/print the text of each unclassified/unidentified anchor element that contains the phrase "Where the Red Fern Grows", without having to type the entire string and remain case insensitive.
I've tried a multitude of things so far, with my greatest success being only a half measure. I was able to successfully collect the very first anchor element that contained 'WTRFG'. Unfortunately, despite my best efforts, that's about as much as I've been able to get. I've used both find and find_all, tried to use re.search with regex, and tried a number of other things I found in other stack overflow answers. No dice. Here's what I got right now.
...ANSWER
Answered 2021-May-04 at 23:02To select multiple tags with the text "red fern", you can do:
QUESTION
The way to provide an accessible name for an element is via its alt attribute. Similarly, the way to provide an acessible name for an element is via its </code> element.</p>
<p>If I have an <code>img</code> tag within an <code>a</code> tag, the accessible name of the link is the accessible name of the <code>img</code>. However, if I have an <code>svg</code> within an <code>a</code> tag, the link has has no accessible name even if the <code>svg</code> does. Why is this?</p>
<p>This is apparent within both Lighthouse audits and also the Accessibility tab of Firefox dev tools.</p>
<pre><code><a href="/fern">
<img src="/bracken" alt="Bracken" />
</a>
</code></pre>
<p><a href="https://i.stack.imgur.com/VUzEk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VUzEk.png" alt="Using an img" /></a></p>
<pre><code><a href="/fern">
<svg role="img" viewBox="0 0 100 100">
<title>Bracken
I could add an aria-label to the link, but that seems like duplication.
...ANSWER
Answered 2020-Aug-03 at 07:09Visually hidden text is still the most robust way to ensure link text is read out.
There are other ways of doing this that are neater such as using the alt attribute on an external image or aria-labelledby on an inline SVG so I have included those in the answer below.
Most modern screen readers will not have a problem with this (NVDA and JAWS both read the title text in my quick test) but some older ones (including old versions of NVDA, JAWs etc.) will not work.
I believe that the comment that "desc" is the equivalent of "alt" is not correct as I explained in this answer on title vs description on SVG (the first three lines are relevant).
To further expand on this here is what the W3C says about SVGs in the proposed spec update:-
The ‘title’ child element represents a short text alternative for the element.
On a link, this could be the title or a description of the target resource; on an image or drawing object, it could be a short description of the graphic; on interactive content, it could be a label for, or instructions for, use of the element; and so forth.
External SVGsThe ‘desc’ element represents more detailed textual information for the element such as a description. This is typically exposed to assistive technologies to provide more detailed information, such as a description of the visual appearance of a graphic or help to explain the functionality of a complex widget. It is not typically available to other users, so should not be used for essential instructions.
For external SVG files the recommended way to ensure text is read is to use alt tags. This may mean slight duplication but alt attributes work back to ie4!
Keep your title attribute as if someone accesses the image directly they will still get some description of what the image contains.
For this you should give your title an ID. Then add aria-labelledby to the surrounding link. As stated in the question I linked you can also give the an ID and link both of them if you wish.
The downside is that aria-labelledby is not as well supported as you might think, but it is perfectly valid and passes WCAG recommendations.
QUESTION
I have an ajax call that receives a json encoded object on return.
...ANSWER
Answered 2019-Oct-31 at 23:05Maybe try to loop throught the length of the json object? Each loop will increment the counter since you get the first name with autoSearchValue[0]['firstname'] then find the next one with autoSearchValue[1]['firstname'] until the length is reached.
QUESTION
So I am making a game in LWJGL 2 and my project has 4 classes (Entity,AliveEntity,Player,Tree). I want my entities(e.g. trees, ferns,some items) to extend Entity class and player to extend Entity and AliveEntity at the same time so player can have hp, velocity, equipment, etc. So it looks like this now:
...ANSWER
Answered 2018-Nov-03 at 23:10To my knowledge this seem to be correct when extending. When ever I need to I like to think of it in the manner of hierarchy. Does the extending follow it? Both Tree and AliveEntity are part of Entity, and Player is a part of AliveEntity though not part of Tree hence it only extends to AliveEntity . Hope this helps.
QUESTION
I use a flexbox to display a div with an image on the left side and a text on the right side. I want the image to resize only towards the x-axis and not y but keep its ratio. For the text div I want as soon as it resizes a lot in x-axis to be displayed below the image. I use:
ANSWER
Answered 2017-Oct-02 at 06:34You can do this either with a media query, or like here, using a min-width.
When combined with flex-grow, it will take full width when they wrap, and the flex-basis will make them share the width when not.
For best cross browser support, I also wrapped the img
Stack snippet
QUESTION
I have a situation in which a page is built off two different sources with HTML by combining with each other in a containter third page. Each section also has a variable they pass through a form using POST to a single PHP file. These variables change in every execution (When they form a page together).
For example:
...ANSWER
Answered 2017-Jun-07 at 21:283 ways i can think of doing this
-use the form attribute for the input tag in html2 . https://www.w3schools.com/tags/att_form.asp
-As long as HTML1 and HTML2 are not used independently then you can just open the form in html1 and close it in html 2 Your IDE will probably throw errors, but it should work
-Using js to get the values and submitting the form from the javascript
QUESTION
I have a form field that has a list of vendors pages. The value of each is the url for the exact page I want to send customers to. Some users are just getting a page refresh instead of the browser opening a new window and going to the address.
...ANSWER
Answered 2017-Jan-10 at 22:46I copied into JSFiddle to test: https://jsfiddle.net/ok5Lzk20/
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install ferns
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
