From b8614ca71294cc7847afa83dd0764f90597aa7ce Mon Sep 17 00:00:00 2001
From: panlei <2799247126@qq.com>
Date: 星期六, 02 十一月 2019 18:08:03 +0800
Subject: [PATCH] 解决事件推送内存问题
---
util/image.go | 42 ++++++++++++++++++++++++++++++++++++++----
1 files changed, 38 insertions(+), 4 deletions(-)
diff --git a/util/image.go b/util/image.go
index 8c245a7..cadc71a 100644
--- a/util/image.go
+++ b/util/image.go
@@ -5,12 +5,46 @@
"gocv.io/x/gocv"
"image"
)
-// 鎸夊昂瀵稿幓鍒囧浘
-func SubImg(i protomsg.Image,x0,y0,x1,y1 int,) []byte{
- img,_ := gocv.NewMatFromBytes(int(i.Height),int(i.Width),gocv.MatTypeCV8UC3,i.Data)
- rect := image.Rect(x0,y0,x1,y1)
+// 鎸夊昂瀵稿幓鍒囧浘
+func SubImg(i protomsg.Image, x0, y0, x1, y1 int, ) []byte {
+ img, _ := gocv.NewMatFromBytes(int(i.Height), int(i.Width), gocv.MatTypeCV8UC3, i.Data)
+ rect := image.Rect(EnlargeSize(x0, y0, x1, y1, i))
region := img.Region(rect)
bytes, _ := gocv.IMEncode(".jpg", region)
return bytes
}
+
+// 闀垮鍙樹负涓�姣斾竴锛屾瘡杈瑰悇鎵╃櫨鍒嗕箣20
+func EnlargeSize(x0, y0, x1, y1 int, i protomsg.Image) (x0_new, y0_new, x1_new, y1_new int) {
+ // 鍏堟妸闀垮鍙樹负涓�姣斾竴
+ chazhi := (y1 - y0) - (x1 - x0)
+ x0 = x0 - chazhi/2
+ if x0 < 0 {
+ x0 = 0
+ }
+ x1 = x1 + chazhi/2
+ if x1 > int(i.Width) {
+ x1 = int(i.Width)
+ }
+
+ // 鍐嶆妸姣忚竟鍚勬墿澶х櫨鍒嗕箣20
+ enlarge := float32(0.2)
+ x0_new = int((1+enlarge)*float32(x0) - enlarge*float32(x1))
+ if x0_new < 0 {
+ x0_new = 0
+ }
+ x1_new = int((1+enlarge)*float32(x1) - enlarge*float32(x0))
+ if x1_new > int(i.Width) {
+ x1_new = int(i.Width)
+ }
+ y0_new = int((1+enlarge)*float32(y0) - enlarge*float32(y1))
+ if y0_new < 0 {
+ y0_new = 0
+ }
+ y1_new = int((1+enlarge)*float32(y1) - enlarge*float32(y0))
+ if y1_new > int(i.Height) {
+ y1_new = int(i.Height)
+ }
+ return
+}
--
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