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Correct image.Rectangle downscaling

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This commit is contained in:
David Vogel 2023-12-23 01:09:50 +01:00
parent a0168df91f
commit cbdd925c30
1 changed files with 2 additions and 1 deletions
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3
bin/stitch/image-tile.go
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@ -36,6 +36,7 @@ type ImageTile struct {
} }
// NewImageTile returns an image tile object that represents the image at the given path. // NewImageTile returns an image tile object that represents the image at the given path.
// The filename will be used to determine the top left x and y coordinate of the tile.
// This will not load the image into RAM. // This will not load the image into RAM.
func NewImageTile(path string, scaleDivider int) (ImageTile, error) { func NewImageTile(path string, scaleDivider int) (ImageTile, error) {
if scaleDivider < 1 { if scaleDivider < 1 {
@ -71,7 +72,7 @@ func NewImageTile(path string, scaleDivider int) (ImageTile, error) {
fileName: path, fileName: path,
modTime: modTime, modTime: modTime,
scaleDivider: scaleDivider, scaleDivider: scaleDivider,
image: image.Rect(x/scaleDivider, y/scaleDivider, (x+width)/scaleDivider, (y+height)/scaleDivider), image: image.Rect(DivideFloor(x, scaleDivider), DivideFloor(y, scaleDivider), DivideCeil(x+width, scaleDivider), DivideCeil(y+height, scaleDivider)),
imageMutex: &sync.RWMutex{}, imageMutex: &sync.RWMutex{},
invalidationChan: make(chan struct{}, 1), invalidationChan: make(chan struct{}, 1),
timeoutChan: make(chan struct{}, 1), timeoutChan: make(chan struct{}, 1),