完成提取图片数据的功能

plter · Mar 14, 2018 · c562a11 · c562a11
1 parent 55f9d77
commit c562a11
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diff --git a/ExtractPhotoData/Data.js b/ExtractPhotoData/Data.js
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+window.epd = window.epd || {};
+
+(function () {
+    let urlsString = `0-01.png
+0-02.png
+0-03.png
+0-04.png
+0-05.png
+0-06.png
+0-07.png
+0-08.png
+0-09.png
+0-10.png
+1-01.png
+1-02.png
+1-03.png
+1-04.png
+1-05.png
+1-06.png
+1-07.png
+1-08.png
+1-09.png
+1-10.png
+2-01.png
+2-02.png
+2-03.png
+2-04.png
+2-05.png
+2-06.png
+2-07.png
+2-08.png
+2-09.png
+2-10.png
+3-01.png
+3-02.png
+3-03.png
+3-04.png
+3-05.png
+3-06.png
+3-07.png
+3-08.png
+3-09.png
+3-10.png
+4-01.png
+4-02.png
+4-03.png
+4-04.png
+4-05.png
+4-06.png
+4-07.png
+4-08.png
+4-09.png
+4-10.png
+5-01.png
+5-02.png
+5-03.png
+5-04.png
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+5-07.png
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+5-09.png
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+6-01.png
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+6-08.png
+6-09.png
+6-10.png
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+9-07.png
+9-08.png
+9-09.png
+9-10.png`;
+
+    epd.photoUrls = urlsString.split("\n");
+
+})();
diff --git a/ExtractPhotoData/app.js b/ExtractPhotoData/app.js
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+(function () {
+
+    const BASE_PHOTOS_DIR = "photos";
+    let canvas = document.createElement("canvas");
+    let context2d = canvas.getContext("2d");
+    let train_data_out = document.querySelector("#train_data_out");
+    let targetDataOut = document.querySelector("#target_data_out");
+
+
+    function initProperties() {
+        canvas.width = 20;
+        canvas.height = 20;
+    }
+
+    function loadImage(src) {
+        return new Promise(((resolve, reject) => {
+            let img = new Image();
+            img.onload = () => {
+                resolve(img);
+            };
+            img.src = src;
+        }));
+    }
+
+    async function main() {
+        initProperties();
+
+
+        let allPhotoData = [];
+        let allTargetData = [];
+        for (let i = 0; i < epd.photoUrls.length; i++) {
+            let img = await loadImage(`${BASE_PHOTOS_DIR}/${epd.photoUrls[i]}`);
+
+            context2d.clearRect(0, 0, canvas.width, canvas.height);
+            context2d.fillStyle = "#ffffff";
+            context2d.fillRect(0, 0, canvas.width, canvas.height);
+            context2d.drawImage(img, 0, 0);
+
+            let photoImageData = context2d.getImageData(0, 0, canvas.width, canvas.height);
+            let photoData = [];
+            for (let pxIndex = 0; pxIndex < photoImageData.data.length; pxIndex += 4) {
+                let r = photoImageData.data[pxIndex];
+                let g = photoImageData.data[pxIndex + 1];
+                let b = photoImageData.data[pxIndex + 2];
+                let color = Math.round((r + g + b) / 3);
+                photoData.push(color);
+            }
+            allPhotoData.push(photoData);
+            allTargetData.push(Math.floor(i / 10));
+        }
+
+        train_data_out.value = JSON.stringify(allPhotoData);
+        targetDataOut.value = JSON.stringify(allTargetData);
+    }
+
+    main();
+
+})();
diff --git a/ExtractPhotoData/data/train_data.json b/ExtractPhotoData/data/train_data.json
diff --git a/ExtractPhotoData/data/train_target.json b/ExtractPhotoData/data/train_target.json
@@ -0,0 +1 @@
+[0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9]
diff --git a/ExtractPhotoData/index.html b/ExtractPhotoData/index.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+<textarea id="train_data_out" style="width: 200px;height: 300px"></textarea>
+<textarea id="target_data_out" style="width: 200px;height: 300px"></textarea>
+
+
+<script src="Data.js"></script>
+<script src="app.js"></script>
+</body>
+</html>
diff --git a/ExtractPhotoData/photos/0-01.png b/ExtractPhotoData/photos/0-01.png
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diff --git a/机器学习之手写识别.pptx b/机器学习之手写识别.pptx
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		[0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9]