如何通过Vue实现图片的曝光和高光处理？

<template>
  <div>
    <input type="file" @change="onFileChange" />
    <canvas ref="canvas"></canvas>
  </div>
</template>

<script>
export default {
  data() {
    return {
      imageSrc: null,
      image: null
    };
  },
  methods: {
    onFileChange(event) {
      const file = event.target.files[0];
      this.imageSrc = URL.createObjectURL(file);
    },
    loadImage() {
      this.image = new Image();
      this.image.src = this.imageSrc;
      this.image.onload = () => {
        this.drawImage();
      };
    },
    drawImage() {
      const canvas = this.$refs.canvas;
      const context = canvas.getContext("2d");
      context.drawImage(this.image, 0, 0, canvas.width, canvas.height);
    }
  },
  watch: {
    imageSrc() {
      this.loadImage();
    }
  }
};
</script>

function adjustBrightness(imageData, brightness) {
  const data = imageData.data;
  for (let i = 0; i < data.length; i += 4) {
    data[i] += brightness;
    data[i + 1] += brightness;
    data[i + 2] += brightness;
  }
  return imageData;
}

function adjustHighlights(imageData, highlights) {
  const data = imageData.data;
  for (let i = 0; i < data.length; i += 4) {
    const r = data[i];
    const g = data[i + 1];
    const b = data[i + 2];

    const max = Math.max(r, g, b);
    const delta = max * (highlights / 100);

    if (r === max) {
      data[i] += delta;
    }
    if (g === max) {
      data[i + 1] += delta;
    }
    if (b === max) {
      data[i + 2] += delta;
    }
  }
  return imageData;
}

<template>
  <div>
    <!-- 省略部分代码 -->
    <button @click="exposure">曝光处理</button>
    <button @click="highlights">高光处理</button>
  </div>
</template>

<script>
export default {
  // 省略部分代码

  methods: {
    // 省略部分代码

    exposure() {
      const canvas = this.$refs.canvas;
      const context = canvas.getContext("2d");
      const imageData = context.getImageData(0, 0, canvas.width, canvas.height);
      const adjustedData = adjustBrightness(imageData, 50);
      context.putImageData(adjustedData, 0, 0);
    },

    highlights() {
      const canvas = this.$refs.canvas;
      const context = canvas.getContext("2d");
      const imageData = context.getImageData(0, 0, canvas.width, canvas.height);
      const adjustedData = adjustHighlights(imageData, 25);
      context.putImageData(adjustedData, 0, 0);
    }
  }
};
</script>