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Fix clipping when converting

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This commit is contained in:
heyarne 2022-03-21 00:09:42 +01:00
commit c0b8b8a925
1 changed files with 1 additions and 1 deletions
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epd/epd.go
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@ -63,7 +63,7 @@ func ConvertImage(input *io.Reader, width int, height int) ([]byte, error) {
// the actual conversion works by packing two nibbles together in a byte // the actual conversion works by packing two nibbles together in a byte
var result = make([]byte, (width*height+1)/2) var result = make([]byte, (width*height+1)/2)
for i, p := range dst.Pix { for i, p := range dst.Pix {
res := uint8((uint16(p) + 8) / 16) res := p / 16
if i%2 == 0 { if i%2 == 0 {
res = res << 4 res = res << 4
} }