There is any possibility to upload a file with different sizes in DropzoneJs?
I'm using vue-dropzone which is made with dropzonejs and i have to upload the same file with different sizing for srcset.
Example:
I want to upload the file test.png which is 1000x500 px. There is any possibility to upload it at the same time in original resolution and also in 500x250px?
Image resizing in the browser has been a seat-of-the pants experience for a long time. Web assemblies are the way of the future for processing-intensive tasks in web apps. I came across this project the other day. It looks fantastic and I really can't wait to strip out our home-baked image resizing with canvas and replace it with this.
The usual reason for doing this is to avoid large uploads. It's a little bit weird to want to resize in the browser then upload the original. You might be better resizing on the server. You'll save bandwidth and the server libraries will be more mature than what's available on the client.
Along with the original image object you can add one more your custom resized image to the array of images by using resize config of dropzone. You can do the above on drop event or adddedFile event of dropzone.
Related
I have been applying custom html/css layout to hippo. in homepage-main.ftl I have an image which is 1366x518 and ~400KB in size. Here's how it's implemented.
<img src="<#hst.webfile path="/images/homebanner.jpg"/>"/> However, when I run Hippo CMS it doesn't load (404 error in Chrome dev tool console) the banner image but it shows all the other images. I checked cms.war and i found this image inside cms->WEB-INF->lib->[projectname]-bootstrap-content-[snapshot version].jar. I put a small size image instead of homebanner.jpg and it worked. I am not sure whether this is an issue on Hippo CMS or Tomcat 8 configuration. any answer would be really appreciated.
Simple answer:
Webfiles are limited to 256kb by default, it won't pick up anything bigger.
See also: http://www.onehippo.org/library/concepts/web-files/web-files-configuration.html if you want to change the max file size.
I would reccomend looking at making your banner configurable from within the CMS and using Imagesets for larger sizes.
I'm evaluating Fine Uploader compared to various other options, specifically JQuery File Upload.
I generally prefer the Fine Uploader approach as it's more lightweight, compared to JQuery File Uploader which has dependencies on Bootstrap and JQuery UI.
However it's important to be able to resize images: e.g., a user may select a large file from their camera and this may be very large - uploading the full resolution photo may take a very long time. JQuery File Upload doe this.
Additionally we don't have much use for very high resolution files.
If possible (I'm aware some browsers may not support this), I'd like to be able to resize images client size.
Is this possible?
Fine Uploader does not currently have any native support for image manipulation. This is a feature in our backlog, but we have not had many users tell us they are interested in this. This is one of the reasons why such a feature has yet to be implemented natively. There is a case, #707 that marks the start of native image-editing support for Fine Uploader. It is tentatively scheduled for 4.0.
However, you can certainly make use of FileReader and Canvas to resize the image. You can then submit this resized image as a Blob to Fine Uploader via the addFiles API method. At that point, the file has been submitted and Fine Uploader is ready to upload the item.
Essentially, the steps you would follow to handle this specific scenario, before Fine Uploader natively supports image manipulation:
Provide your own file input element(s) or make use of Fine Uploader's file/folder drag and drop support to get a handle on some files selected by the user.
Use FileReader to read the contents of the image.
FileReader will provide you with a URL for the image, assign that to the src attribute of an img element.
Draw the img onto a canvas element. This is where the resizing occurs.
Grab the URL of the resized image from the canvas element (canvas.toDataURL(...)).
Convert the URL to a Blob.
Pass the Blob to the addFiles API method of Fine Uploader.
The intent is to take care of most if not all of this for integrators such as yourself in the future by adding native image manipulation support to Fine Uploader.
Hope this helps.
Is it possible to download images from a web server and save them in such a way that
[UIImage imageNamed:#"filename"]
would still work for filename.png and filename#2x.png just as if they had been sent along in the application package all along?
Adding my comment as an answer. You can try to send the scale based on retina/non-retina and then download a single image based on that. You dont need to worry about combining two images and downloading since a device can be either retina or non-retina only. You dont need both images at the same time.
You can download the images based on retina/non-retina of the device itself. No need to keep both in the same device.
As you are considering downloading both images, so bandwidth per se is not of concern, why not combine the two images into a multi-resolution TIFF and download that from the web server? If you do that and load the image from the file the correct resolution will be picked automatically.
I’m using the BuddyPress Activity Plus plugin and wanted to know if there was a way to call the full size image that was uploaded when viewing the single page of the activity?
I’ve looked at placing a line of code in “activity/entry.php” of the child theme but can’t find anything that will call its full size image, only the thumbnail shows with the link to the full size image to open in a lightbox.
This isn’t what I’m looking for, the full size image needs to be in place of the thumbnail when viewing the single activity page.
Any idea anyone? Sorry if this is the right place for this, just having trouble getting an answer
Many thanks
I'm looking to do a similar thing, not too much luck yet. Also - have you noticed that if you upload multiple images, they stack, rather then laying out side by side?
EDIT:
Found out how to make the images in the stream bigger:
You can set your preferred thumbnail size separately from your default thumbnail size settings, if you wish to do so. You can do that by adding this line to your wp-config.php:
define('BPFB_THUMBNAIL_IMAGE_SIZE', '200x200');
Where "200x200" are width and height (in that order), in pixels.
Finally, be sure to verify your default sizes for embedded media. It's in Settings -> Media -> Embeds -> Maximum embed size
Is there any way to resize pictures while uploading them in Symfony2 ?
The ImagineAvalancheBundle only allows to resize images to thumbnails when retrieving them, which is not really performant to me.
Besides, the UploadedFile object retreived when posting data doesn't seems to have resizing methods...
Any Idea ?
I had the same problem you are asking for.
The main issue is that the bundle resizes and/or crops the images directly.
So that can take a lot of time with big images and if many images are expected per page.
So I've fix this issue by calling directly after imageupload the resize() function to the image.
Hence, I save (copy) the resized image to the filesystem at the server. Obviously I store the path of the image into the database to can load it directly if needed.
I tried the included memcache of the imageresize bundle but in my case it doesn't work.
I had the same problem for a project that i'm actually developing. I searched a lot on the net and found nothing realy performant and also easy to use for non-tech people.
I created a bundle to be able to upload with jquery file upload and crop with jcrop with some other functions.
ComurImageBundle
What is exactly your goal ? Resize and crop ? Other ?
I don't understand why you say that the bundle resize to thumbnail only as you can define precisely your resize preset through config :
# app/config/config.yml
avalanche_imagine:
filters:
my_thumb:
type: thumbnail
options: { size: [120, 90], mode: outbound }