HTML images with base64 - html

Like as the title of thread, I need to know way to insert images into web page HTML, the images will be encrypted base64. I found this example code
<img alt="Embedded Image" src="data:image/png;base64,iVBORw0KGgoAAAANSU" />
But I don't want this, I need more complex like:
<img alt="Embedded Image" src="data:image/png;base64,/path/to/file.txt" />
The file.txt is file containes base64 code. Thanks!

You need some programming language that can read file, e.g. PHP:
<img alt="Embedded Image" src="data:image/png;base64,<?= file_get_contents('/path/to/file.txt'); ?>" />

Related

Proper <img/> source for ASP.net project?

I'm having trouble understanding how to get images to display on this ASP.net project. I'm used to using tags, but am having trouble with the paths.
I have tried all of these solutions and none cause the image to display:
<img src="~/Images/mask.png" alt="Sample Photo" />
<img src="~/Images/mask.png" alt="Sample Photo" runat="server" />
<img src="../Images/mask.png" alt="Sample Photo" />
<img src="Images/mask.png" alt="Sample Photo" />
<img src="../Images/mask.png" alt="Sample Photo" />
The Images folder is in the project root. I'm using Bootstrap 4.0 and no other CSS.
If I set the src to a link (to Imgur, for example), the image displays. This makes me think it's an issue with the path, but I don't know what it could be. I think I've tried every variation that I came across when googling.
Any guidance would be really appreciated, and please let me know if I need to elaborate.
Place images in wwwroot folder.Details in documentation

Image name with '%' in it not rendering in browser

I am referencing image with the name - 'a%1.jpg'. It is not rendering in the browser. My image tag looks like <img src="a%1.jpg" id="Image1" /> Is there anything I can do to use escape sequence - to render the image properly.
Percent signs in URLs should be encoded as %25:
<img src="a%251.jpg" id="Image1" />

reduce the amount of code needed when displaying multiple images HTML CSS

just wondering if there is a way to reduce the amount of code needed when displaying a lot of images in HTML?
I am wanting to display around 2-300 images in a gallery, and at the moment the HTML will look like this:
<div id="scroller>
<img src="/Content/images/decking/decking-1.jpg" width="100" alt="" />
<img src="/Content/images/decking/decking-2.jpg" width="100" alt="" />
<img src="/Content/images/decking/decking-3.jpg" width="100" alt="" />
<img src="/Content/images/decking/decking-4.jpg" width="100" alt="" />
<img src="/Content/images/decking/decking-5.jpg" width="100" alt="" />
</div>
...but down to image "decking-250.jpg".
Is there a more efficiant way to display the images so that I don't have 250+ lines of "img src" HTML?
The only part of the filename that changes is the "-1", "-2", "-3" etc etc. The rest, including the Alt tag can remain empty.
I am building this site in ASP.Net MVC3 Razor using the ASP.net online tutorials as a guide if that helps any solution come to mind, of if it simply has to be done that way then that is also fine - I just wondered if there was another approach I should consider to learn?
Many thanks in advance.
This is the way HTML works. You can't reduce that, as you need one img tag for each picture. You may create that code dynamically via PHP, JS, …. But in the end you'll get a long list of img tags, maybe individually wrapped by other tags (for example in a list).
I agree with Feela, and though it may appear verbose, your code is about as bullet-proof as it gets. Yet if something like JS is something you can use (or are using already), there are options. This isn't tested, but you could set up a for-loop statement in Jquery/Javascript that could condense the code. For example:
for (i=1; i < 250; i++) {
$('#scroller').append('<img src="/Content/images/decking/decking-' + i.toString() + '.jpg" width="100" alt="" />');
}
I'm no ASP coder, but perhaps it provides something functionally similar.

html: Several pictures as links - possible way to improve the code using classes

Here are several small icons on the page that looks the same, but display different information.
Classes message1, message2, .., messageN are used for ajax to display a message (could be the same on the same page, so classes instead of ids are used).
I can create css class .defaultcursor{cursor:default;} to improve the code below. Are there any better idea so the code takes as few space (bytes) as possible with the same functionality?
<img src="help.png" alt="" />
...
<img src="help.png" alt="" />
...
<img src="help.png" alt="" />
...
<img src="help.png" alt="" />
Thank you.

Image is not showing in browser?

<body style="background-color: paleturquoise">
<h2 style="color: red">Duke's soccer League: Home Page<br/></h2>
<ul style="list-style-type: circle">
<li style="font-size: larger">All Leagues list</li>
<li style="font-size: larger">Register for a League (TBA)<br/><br/></li>
</ul>
<h2 style="color: red">League Administrator</h2>
<ul style="list-style-type: square">
<li style="font-size: larger">Add a new League (TBA)</li>
<img src="C:\Users\VIRK\Desktop\66.jpg" width="400" height="400" ></img>
</ul>
</body>
I am currently practice with JSP and I try this html code to make a web page on NetBeans IDE 7.0 but when I'm build and run the page no error in code but the image is not showing in the browser.
Edited:
Here I have given the screenshot of the NetBeans IDE where you can see the image is existing in Web-INF folder and the index.jsp page too and I tried with "/" before the image name but it won't work. The exact path of my project is C:\Users\VIRK\Documents\NetBeansProjects\practiceJSP .
<img src="/66.jpg" width="400" height="400" ></img>
I find out the way how to set the image path just remove the "/" before the destination folder as "images/66.jpg" not "/images/66.jpg" And its working fine for me.
You put inside img tag physical path you your image. Instead of that you should put virtual path (according to root of web application) to your image. This value depends on location of your image and your html page.
for example if you have:
/yourDir
-page.html
-66.jpg
in your page.html it should be something like that:
<img src="66.jpg" width="400" height="400" ></img>
second scenario:
/images
-66.jpg
/html
page.html
So your img should look like:
<img src="../images/66.jpg" width="400" height="400" ></img>
Your path should be like this : "http://websitedomain//folderpath/66.jpg">
<img src="http://websitedomain/folderpath/66.jpg" width="400" height="400" ></img>
I don't know where you're running the site from on your computer, but you have an absolute file path to your C drive: C:\Users\VIRK\Desktop\66.jpg
Try this instead:
<img src="[PATH_RELATIVE_TO_ROOT]/66.jpg" width="400" height="400" />
UPDATE:
I don't know what your $PROJECTHOME is set to. But say for example your site files are located at C:\Users\VIRK\MyWebsite. And let's say your images are in an 'images' folder within your main site, like so: C:\Users\VIRK\MyWebsite\images.
Then in your HTML you can simply reference the image within the images folder relative to the site, like so:
<img src="images/66.jpg" width="400" height="400" />
Or, assuming you're hosting at the root of localhost and not within another virtual directory, you can do this (note the slash in the beginning):
<img src="/images/66.jpg" width="400" height="400" />
all you need to do is right click on the jsp page in the browser, which might look like "localhost:8080/images.jpg, copy this and paste it where the image is getting generated
I had same kind of problem in Netbeans.
I updated the image location in the project and when I executed the jsp file, the image was not loaded in the page.
Then I clean and Built the project in Netbeans. Then it worked fine.
Though you need to check the image actually exists or not using the image URL in the browser.
I had a problem where the images would not show and it wasn't the relative path. I even hard coded the actual path and the image still did not show. I had changed my webserver to run on port 8080 and neither
<img src="c:/public/images/<?php echo $image->filename; ?>" width="100" />
<img src="c:/public/images/mypic.jpg" width="100" />
would not work.
<img src="../../images/<?php echo $photo->filename; ?>" width="100" />
Did not work either. This did work :
<img src="http://localhost:8080/public/images/<?php echo $image->filename; ?>" width="100" />
do not place *jsp or *html in root folder of webapp and images you want to display in same root folder browser cannot acess the image in WEB-INF folder
I also had a similar problem and tried all of the above but nothing worked.
And then I noticed that the image was loading fine for one file and not for another. The reason was: My image was named image.jpg and a page named about.html could not load it while login.html could. This was because image.jpg was below about and above login. So I guess login.html could refer to the image and about.html couldn't find it.
I renamed about.html to zabout.html and re-renamed it back. Worked.
Same may be the case for images enclosed in folders.
the easy way to do it to place the image in Web Content and then right click on it and then open it by your eclipse or net beans web Browser it will show the page where you can see the URL which is the exact path then copy the URL and place it on src=" paste URL " ;
If we are using asp.net "FileUpload" control and want to preview image before upload we can use below code.
<asp:FileUpload ID="fileUpload" runat="server" Style="border: none;" onchange="showpreview(this);" />
<img id="previewImage" src="C:\fakepath\natureImage.jpg">
<script>
function showpreview(Imagepath) {
var reader = new FileReader();
reader.onload = function (e) {
$("#previewImage").attr("src", e.target.result);
}
reader.readAsDataURL(Imagepath.files[0]);
}
</script>
Another random reason for why your images might not show up is because of something called base href="http://..." this can make it so that the images file doesn't work the way it should. Delete that line and you should be good.
You need to import your image from the image folder.
import name_of_image from '../imageFolder/name_of_image.jpg';
<img src={name_of_image} alt=''>
Please refer here.
https://create-react-app.dev/docs/adding-images-fonts-and-files -
The folder names in the path should not contain the space
write fullstack /asset/image.jpg instead of full stack/asset/image.jpg