1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
| <!DOCTYPE html>
<title>modif image</title>
<style>
#csv {
position: absolute;
top: 50%;
left: 50%;
margin: -180px 0 0 20px;
border :1px solid #444444;
cursor:crosshair
}
</style>
<script>
var code={"0":0,"1":1,"2":2,"3":3,"4":4,"5":5,"6":6,"7":7,"8":8,"9":9,"a":10,"b":11,"c":12,"d":13,"e":14,"f":15}
var cvs_originale=""
var cvs=''
var valeur =000000
var r2 = 00
var g2 = 00
var b2 = 00
addEventListener('load',function(){
cvs_originale=document.createElement("canvas");
cvs_originale.height=400
cvs_originale.width=500
},false);
function drop(e) {
var fichier = document.getElementById('fileinput').files;
if (fichier[0].type.match('image.*')) {
var urimg=window.URL.createObjectURL(fichier[0]);
var img = new Image;
img.src = urimg;
img.onload = function() {
var cvs=document.getElementById('csv')
var contexte = cvs.getContext('2d');
contexte.drawImage(img, 0,0,cvs.width,cvs.height);
cvs_originale.getContext('2d').drawImage(img, 0,0,cvs.width,cvs.height);
window.URL.revokeObjectURL(urimg);
}
}
}
function val_inp() {
valeur = document.getElementById('choi_coul').value
valeur=valeur.substring(1, valeur.length)
r2 = code[valeur[0]]*16+code[valeur[1]]
g2 = code[valeur[2]]*16+code[valeur[3]]
b2 = code[valeur[4]]*16+code[valeur[5]]
}
function val_pipete(e) {
var cvs=document.getElementById('csv');
var dde=(navigator.vendor) ? document.body : document.documentElement;
var X =e.clientX + dde.scrollLeft-cvs.offsetLeft;
var Y =e.clientY + dde.scrollTop-cvs.offsetTop;
var idata = cvs.getContext('2d').getImageData(X,Y,1,1);
var data = idata.data;
r2 = data[0]
g2 = data[1]
b2 = data[2];
var rgb='rgb('+data[0]+','+data[1]+','+data[2]+')';
document.getElementById('choi_coul').style.backgroundColor=rgb;
}
function modifier() {
var sensib=parseInt(document.getElementById('rg').value)
var cvs=document.getElementById('csv');
var idata = cvs_originale.getContext('2d').getImageData(0,0,cvs.width,cvs.height);
var data = idata.data;
for(var i = 0; i < data.length; i+=4) {
var r = data[i];
var g = data[i+1];
var b = data[i+2];
if ((r < r2+sensib && r > r2-sensib) && (g < g2+sensib && g > g2-sensib) && (b < b2+sensib && b > b2-sensib)){;
data[i+3] = 0;
}
}
idata.data = data;
cvs.getContext('2d').putImageData(idata,0,0);
}
function telecharger(e){
if(navigator.msSaveOrOpenBlob){
var blobObject=document.getElementById("canvas").msToBlob()
window.navigator.msSaveOrOpenBlob(blobObject, this.input_fichier.value+".png");
}
else{
var canvas = document.getElementById("csv");
var elem = document.createElement('a');
elem.href = canvas.toDataURL("image/png");
elem.download = "nom.png";
var evt = new MouseEvent("click", { bubbles: true,cancelable: true,view: window,});
elem.dispatchEvent(evt);
}
}
</script>
<input type='file' multiple='multiple' id='fileinput' onchange='drop()'>
<br><br>
<label for="favcolor">choisir couleur</label>
<input type="color" id="choi_coul" value="#ff0000" oninput="val_inp()">
<br><br>
<label for="rg">sensibilite</label>
<input type='range' min="0" max="256" step="4" id="rg" oninput="modifier()">
<br><br>
<button onclick="telecharger(event)">telecharger</button>
<canvas id="csv" height=400 width="500" onclick="val_pipete(event)" ></canvas> |
Partager