add image

iimg/image.go

@@ -0,0 +1,39 @@
+package iimg
+
+import (
+	"bytes"
+	"image"
+	"image/color"
+	"image/jpeg"
+)
+import (
+	_ "image/gif"
+	_ "image/jpeg"
+	_ "image/png"
+)
+
+// ToRGB  convert image color to rgb
+func ToRGB(img image.Image) image.Image {
+	bounds := img.Bounds()
+	rgbImage := image.NewRGBA(bounds)
+	for y := bounds.Min.Y; y < bounds.Max.Y; y++ {
+		for x := bounds.Min.X; x < bounds.Max.X; x++ {
+			originalPixel := img.At(x, y)
+			r, g, b, _ := originalPixel.RGBA()
+			rgbImage.Set(x, y, color.RGBA{
+				R: uint8(r >> 8),
+				G: uint8(g >> 8),
+				B: uint8(b >> 8),
+				A: 255,
+			})
+		}
+	}
+	return rgbImage
+}
+
+// ToJPG
+func ToJPG(img image.Image, quality int) ([]byte, error) {
+	b := new(bytes.Buffer)
+	err := jpeg.Encode(b, img, &jpeg.Options{Quality: quality})
+	return b.Bytes(), err
+}