Since on mobile browsers, the video
tag is not fully supported, one need to use the following to take a shot.
<button onclick="$('#inputv').trigger('click');">Take a shot</button> <input type="file" id="inputv" name="inputv" accept="image/*" capture="camera" style="display:none"> <div id="f_img"></div>
And on js
side, you need to utilize FileReader
object to read the image shot from it. The image is stored in base64
string format, which can be added to src
attribute to show the image on the page.
window.addEventListener("DOMContentLoaded", function(){ if (window.File && window.FileReader && window.FileList && window.Blob) { $("#inputv").change(function(e){ var f = e.target.files[0]; // alert(f.size); var reader = new FileReader(); reader.onload = function(e) { //write your code to process the image $("#f_img").html('<img src="' + e.target.result + '">'); }; reader.readAsDataURL(f); }); // Great success! All the File APIs are supported. } else { $("#notice").append('The File APIs are not fully supported in this browser.'); }
The image in base64
can be uploaded to the server part using input
tag with the type as text
. A possible server-side handling witten in python can be the following:
from flask import request image = request.form['image'] def save_b64(image): img_str = str(image) #unicode to str obj head="data:image/jpeg;base64," if str(img_str).startswith(head): l = len(head) img_str = img_str[l:] import time timestr = time.strftime("%Y%m%d%H%M%S") path = "image/capture-" + timestr + ".jpg" try: img = open(path, "wb") img.write(img_str.decode('base64')) img.close() return path except Exception as e: return False
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