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<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
image 1
<input id="fileupa1"  type="file" >

<div class="container">
</div>

<style>

.container {
    border: 1px solid #DDDDDD;
    display: flex;
    background: red;
    width: 612px;
    height: 612px;
}

.container canvas {
    display: block;
}

.masked-img {
    overflow: hidden;
    margin-top: 50px;
    position: relative;
}

</style>


<script>

var mask1;

$(document).ready(function() {

    var maskedImageUrla = "";

    $.getJSON('test.json', function(json) {
        for (let layer of json.layers) {
            if (layer.layers && layer.layers.length > 0) {
                for (let temp of layer.layers) {
                    if (temp.src) maskedImageUrla = temp.src;
                    else if (temp.layers) {
                        for (let tl of temp.layers)
                            if (tl.src) maskedImageUrla = tl.src;
                    }
                }
            }
        }

        var mask1 = $(".container").mask({
            maskImageUrl: maskedImageUrla,
            onMaskImageCreate: function(img) {

                img.css({
                    "position": "fixed",
                    "left": 50, // get x value from json
                    "top": 69   // get y value from json
                });
            }
        });

        fileupa1.onchange = function() {
            mask1.loadImage(URL.createObjectURL(fileupa1.files[0]));
        };
    });

}); // end of document ready

// jq plugin for mask
(function($) {
    var JQmasks = [];
    $.fn.mask = function(options) {
        // This is the easiest way to have default options.
        var settings = $.extend({
            // These are the defaults.
            maskImageUrl: undefined,
            imageUrl: undefined,
            scale: 1,
            id: new Date().getUTCMilliseconds().toString(),
            x: 0, // image start position
            y: 0, // image start position
            onMaskImageCreate: function(div) {},
        }, options);


        var container = $(this);

        let prevX = 0,
            prevY = 0,
            draggable = false,
            img,
            canvas,
            context,
            image,
            timeout,
            initImage = false,
            startX = settings.x,
            startY = settings.y,
            div;

        container.mousePosition = function(event) {
            return {
                x: event.pageX || event.offsetX,
                y: event.pageY || event.offsetY
            };
        }

        container.selected = function(ev) {
            var pos = container.mousePosition(ev);
            var item = $(".masked-img canvas").filter(function() {
                var offset = $(this).offset()
                var x = pos.x - offset.left;
                var y = pos.y - offset.top;
                var d = this.getContext('2d').getImageData(x, y, 1, 1).data;
                return d[0] > 0
            });

            JQmasks.forEach(function(el) {
                var id = item.length > 0 ? $(item).attr("id") : "";
                if (el.id == id)
                    el.item.enable();
                else el.item.disable();
            });
        };

        container.enable = function() {
            draggable = true;
            $(canvas).attr("active", "true");
            div.css({
                "z-index": 2
            });
        }

        container.disable = function() {
            draggable = false;
            $(canvas).attr("active", "false");
            div.css({
                "z-index": 1
            });
        }

        container.onDragStart = function(evt) {
            container.selected(evt);
            prevX = evt.clientX;
            prevY = evt.clientY;
        };

        container.getImagePosition = function() {
            return {
                x: settings.x,
                y: settings.y,
                scale: settings.scale
            };
        };

        container.onDragOver = function(evt) {
            if (draggable && $(canvas).attr("active") === "true") {
                var x = settings.x + evt.clientX - prevX;
                var y = settings.y + evt.clientY - prevY;
                if (x == settings.x && y == settings.y)
                    return; // position has not changed
                settings.x += evt.clientX - prevX;
                settings.y += evt.clientY - prevY;
                prevX = evt.clientX;
                prevY = evt.clientY;
                container.updateStyle();
            }
        };

        container.updateStyle = function() {
            clearTimeout(timeout);
            timeout = setTimeout(function() {
                context.clearRect(0, 0, canvas.width, canvas.height);
                context.beginPath();
                context.globalCompositeOperation = "source-over";
                image = new Image();
                image.setAttribute('crossOrigin', 'anonymous');
                image.src = settings.maskImageUrl;
                image.onload = function() {
                    canvas.width = image.width;
                    canvas.height = image.height;
                    context.drawImage(image, 0, 0, image.width, image.height);
                    div.css({
                        "width": image.width,
                        "height": image.height
                    });
                };

                img = new Image();
                img.src = settings.imageUrl;
                img.setAttribute('crossOrigin', 'anonymous');
                img.onload = function() {
                    settings.x = settings.x == 0 && initImage ? (canvas.width - (img.width * settings.scale)) / 2 : settings.x;
                    settings.y = settings.y == 0 && initImage ? (canvas.height - (img.height * settings.scale)) / 2 : settings.y;
                    context.globalCompositeOperation = 'source-atop';
                    context.drawImage(img, settings.x, settings.y, img.width * settings.scale, img.height * settings.scale);
                    initImage = false;
                };
            }, 0);
        };

        // change the draggable image
        container.loadImage = function(imageUrl) {
            if (img)
                img.remove();
            // reset the code.
            settings.y = startY;
            settings.x = startX;
            prevX = prevY = 0;
            settings.imageUrl = imageUrl;
            initImage = true;
            container.updateStyle();
        };

        // change the masked Image
        container.loadMaskImage = function(imageUrl, from) {
            if (div)
                div.remove();
            canvas = document.createElement("canvas");
            context = canvas.getContext('2d');
            canvas.setAttribute("draggable", "true");
            canvas.setAttribute("id", settings.id);
            settings.maskImageUrl = imageUrl;
            div = $("<div/>", {
                "class": "masked-img"
            }).append(canvas);

            div.find("canvas").on('touchstart mousedown', function(event) {
                if (event.handled === false) return;
                event.handled = true;
                container.onDragStart(event);
            });

            div.find("canvas").on('touchend mouseup', function(event) {
                if (event.handled === false) return;
                event.handled = true;
                container.selected(event);
            });

            div.find("canvas").bind("dragover", container.onDragOver);
            container.append(div);
            if (settings.onMaskImageCreate)
                settings.onMaskImageCreate(div);
            container.loadImage(settings.imageUrl);
        };
        container.loadMaskImage(settings.maskImageUrl);
        JQmasks.push({
            item: container,
            id: settings.id
        })
        return container;
    };
}(jQuery));

</script>