flynx/ImageGrid
1
1
Fork 0
mirror of https://github.com/flynx/ImageGrid.git synced 2025-10-29 02:10:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

updated style...

Browse Source 
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2023-05-10 14:07:18 +03:00
parent 0646305311
commit dee6bb7396
1 changed files with 19 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
Viewer/experiments/ig-image-graph.js
View File

@ -11,8 +11,7 @@ var Filters = {
var c = document.createElement('canvas')
c.width = w
c.height = h
return c
},
return c },
// as input takes an HTML Image object...
getPixels: function(img, w, h){
@ -25,24 +24,20 @@ var Filters = {
context.fillStyle = "black"
context.fill()
} else {
context.drawImage(img, 0, 0, w, h)
}
return context.getImageData(0,0,c.width,c.height)
},
context.drawImage(img, 0, 0, w, h) }
return context.getImageData(0,0,c.width,c.height) },
setPixels: function(c, data, w, h){
c.width = data.width
c.height = data.height
var context = c.getContext('2d')
context.putImageData(data, 0, 0)
},
context.putImageData(data, 0, 0) },
filterImage: function(filter, image, var_args){
var args = [this.getPixels(image)]
for(var i=2; i<arguments.length; i++){
args.push(arguments[i])
}
return filter.apply(null, args)
},
return filter.apply(null, args) },
grayscale: function(pixels, args){
var d = pixels.data
@ -53,10 +48,8 @@ var Filters = {
// CIE luminance for the RGB
// The human eye is bad at seeing red and blue, so we de-emphasize them.
var v = 0.2126*r + 0.7152*g + 0.0722*b
d[i] = d[i+1] = d[i+2] = v
}
return pixels
},
d[i] = d[i+1] = d[i+2] = v }
return pixels },
// XXX need to resize this...
histogram: function(pixels, mode, color){
color = color || 'fill'
@ -90,8 +83,7 @@ var Filters = {
if(mode == 'color' || mode == 'G'){
count[g*4+1] = (count[g*4+1] || 0) + 1 }
if(mode == 'color' || mode == 'B'){
count[b*4+2] = (count[b*4+2] || 0) + 1 } }
}
count[b*4+2] = (count[b*4+2] || 0) + 1 } } }
var m = 255 / Math.max(...count.filter(function(){ return true }))
@ -115,8 +107,7 @@ var Filters = {
&& (od[j-1] = od[j-2] = 180)
break } } })
return out
},
return out },
waveform: function(pixels, mode, color){
mode = mode || 'luminance'
color = color || 'normalized'
@ -166,33 +157,27 @@ var Filters = {
od[j] = od[j+1] = od[j+2] = c * gain
} else {
if(mode == 'color' || mode == 'R'){
f = 0.2126
x = 1
y = 2
j = pos(i, r)
c = count[j] = (count[j] || 0) + m
od[j] = c * gain
}
od[j] = c * gain }
if(mode == 'color' || mode == 'G'){
f = 0.7152
x = -1
y = 1
j = pos(i, g) + 1
c = count[j] = (count[j] || 0) + m
od[j] = c * gain
}
od[j] = c * gain }
if(mode == 'color' || mode == 'B'){
f = 0.0722
x = -2
y = -1
j = pos(i, b) + 2
c = count[j] = (count[j] || 0) + m
od[j] = c * gain
}
od[j] = c * gain }
// normalize...
mode != 'color'
@ -200,12 +185,8 @@ var Filters = {
(od[j+x] = od[j+y] = c * gain)
: color == 'normalized' ?
(od[j+x] = od[j+y] = c * gain/2 * (1-f))
: null)
}
}
return out
},
: null) } }
return out },
}
@ -340,8 +321,7 @@ class igImageGraph extends HTMLElement {
this.setAttribute('src',
url ?
(img.src = value)
: img.src)
}
: img.src) }
get mode(){
return this.getAttribute('mode') || 'color' }
set mode(value){
@ -425,8 +405,7 @@ class igImageGraph extends HTMLElement {
.reverse()
.forEach(function(button){
controls.appendChild(button) })
return this
}
return this }
update(){
var that = this
var mode = this.mode
@ -438,8 +417,7 @@ class igImageGraph extends HTMLElement {
// current button state...
var button = controls.querySelector('button.'+this.mode)
button
&& button.classList.add('current')
}
&& button.classList.add('current') }
// XXX configurable...
var type = this.graph
@ -451,11 +429,9 @@ class igImageGraph extends HTMLElement {
graph(this.image, canvas, this.mode, this.color)
} else if(this.src){
this.src = this.src
}
this.src = this.src }
return this
}
return this }
}
window.customElements.define('ig-image-graph', igImageGraph)