更改不平铺的样式

src/component/Canvas/CanvasEditor/utils/objectHelper.js

@@ -63,9 +63,10 @@ export async function restoreFabricObject(serializedObject, canvas) {
  * 获取对象黑白通道画布
  * @param {fabric.Object} object - 要处理的 fabric 对象
  * @param {ImageData} revData - 相反的ImageData，白通道的相同位置是否为透明，revData为白色为透明，黑色为不透明
+ * @param {number} diff - 差值，默认 25
  * @returns {HTMLCanvasElement|null} 包含黑白通道的画布，或 null 如果失败
 */
-export function getObjectAlphaToCanvas(object, revData) {
+export function getObjectAlphaToCanvas(object, revData, diff = 30) {
 	const image = object.getElement();
 	const { width, height } = image;
 	if (!width || !height) {
@@ -88,7 +89,7 @@ export function getObjectAlphaToCanvas(object, revData) {
 		const revB = revData?.data[i + 2] || 0;
 		const revA = revData?.data[i + 3] || 0;
 		if (r || g || b || a) {
-			if (revR || revG || revB || revA) {
+			if (revR > diff || revG > diff || revB > diff || revA > diff) {
 				data.data[i + 0] = 0;
 				data.data[i + 1] = 0;
 				data.data[i + 2] = 0;