Is there some way using JavaScript to determine an image's height/width and resize it?
I have a server-side command defined to receive images uploaded with TinyMCE (file upload or drag-and-drop). I have the image in my hands as a binary which I then write to my server.
I was testing with this image taken with my iPhone. The original photo was 3024 x 4032. In the editor we can resize, but still the original 4.9 MB image would get saved on the server side. I was thinking there are probably server-side scripts we can add to rescale/resize it. Anybody know of any that can be used when saving images?
The image is a binary, and might be JPEG or might be PNG. It even might be GIF.
For this example, I used Preview on the Mac to resize my picture to 500 pixels wide before uploading, which reduced the size to just 191 KB. It would be great if this could do that using JavaScript once I have the image in hand. Any thoughts? Thanks.
It turns out my (not very standard) server has some built in commands to rescale and optimize image binaries. I added those to the backend upload processor and it works great. It makes editing a lot easier, saves a lot of space on the server, and email notifications containing the images open much quicker. So this issue is good for now.
My answer won't be of any help to a user using an ordinary Apache/PHP server though. But I imagine there are lots of libraries for those.
- Keep numbers which appear in both columns, in J lang
- Differentiation in J
- How to reshape an array with an arbitrary size in one dimension?
- Why is Insert (fold) right associative
- Write 4 : 'x&{.&.;: y' tacitly
- Alignment issue when printing formatted prime numbers in J language
- How can I define a verb in J that applies a different verb alternately to each atom in a list?
- How to get user input in the J programming language
- How to unbox a list of boxed lists of differing lengths in J?
- How can I fix 'noun result was required' error in J?
- In j, how can I define a verb locally in one scope and pass it to a defined adverb?
- Convert boxed array to normal array?
- Read column of CSV file as array
- Replace atom in array of strings
- What does the dyad `=` do to boxed strings?
- Index of minimum element using J
- How can I take the outer product of string vectors in J?
- Building an array of verbs in J
- Reading in multidigit command line parameter
- Amend with bond to new data shows unexpected behaviour
- How to turn a table or matrix into a (flat) list in J
- How to run dissect in J?
- How to define selection using index function in J
- How to exit the J console?
- Find 4-neighbors using J
- Writing custom verbs in J
- How do I negate a selector in J lang?
- How to use arbitrary selector in interchange in J lang?
- different result once square root is added inside tacit
- Sum of arrays with repeated indices