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golang package to find the K most dominant/prominent colors in an image

License: BSD 3-Clause "New" or "Revised" License

Go 71.39% HTML 28.61%

dominant-colors kmeans golang color

prominentcolor's Issues

How ignore some color in image?

I want ignore some color in process, such as white, How do I go to do？

why can't support png/web? how can i do it

Panic with completely black image

Hi,
I'm found a problem while i try to check dominant color on completely black image like the one below.

This is my code:

cols := prominentcolor.KmeansWithAll(3, img, prominentcolor.ArgumentNoCropping, 80, []prominentcolor.ColorBackgroundMask{})

col := cols[0].AsString()
fmt.Println("#"+col)

This is the output that i recive:

2018/01/21 16:31:05 Failed, k larger than len(allColors): 3 vs 0
panic: invalid argument to Intn

goroutine 1 [running]:
math/rand.(*Rand).Intn(0xc042072270, 0x0, 0x3)
	{GO_PATH}/src/math/rand/rand.go:142 +0xa3
math/rand.Intn(0x0, 0x0)
	{GO_PATH}/src/math/rand/rand.go:277 +0x3e
github.com/EdlinOrg/prominentcolor.kmeansPlusPlusSeed(0x3, 0x8, 0x614528, 0x0, 0x0, 0x0, 0x0, 0x0)
	{GO_PATH}/src/github.com/EdlinOrg/prominentcolor/kmeans.go:387 +0xd7
github.com/EdlinOrg/prominentcolor.kmeansSeed(0x3, 0x614528, 0x0, 0x0, 0x8, 0x0, 0xc0429de3c0, 0x5e3700)
	{GO_PATH}/src/github.com/EdlinOrg/prominentcolor/kmeans.go:357 +0x18e
github.com/EdlinOrg/prominentcolor.KmeansWithAll(0x3, 0x5e3700, 0xc0429de3c0, 0x8, 0x50, 0xc04296dec4, 0x3, 0x3, 0x501daa, 0xc042002020, ...)
	{GO_PATH}/src/github.com/EdlinOrg/prominentcolor/kmeans.go:111 +0x104
github.com/EdlinOrg/prominentcolor.KmeansWithArgs(0x8, 0x5e3700, 0xc0429de3c0, 0xc0429de3c0, 0x0, 0x0)
	{GO_PATH}/src/github.com/EdlinOrg/prominentcolor/kmeans.go:101 +0x104
main.main()
	{PROJECT_PATH}/main.go:38 +0x1d1

At the moment i moved to jakekausler/prominentcolor@7583347 a fork of this project that return errors instead of panic, so i can handle exceptions.

How can i have #000000 instead of panic?

ColorRGB implement golang color.Color interface

Hi,

Can you please make ColorRGB to implement golang color.Color interface?

v1.0

It would be great to get a v1 tagged release on this project :)

Mask Problem

The following image produce the incorrect result:

Failed, no non-alpha pixels found (either fully transparent image, or the ColorBackgroundMask removed all pixels)

resizeSize := uint(prominentcolor.DefaultSize)
bgmasks := []prominentcolor.ColorBackgroundMask{prominentcolor.MaskWhite}
colours, err := prominentcolor.KmeansWithAll(
		5, img, prominentcolor.ArgumentNoCropping|prominentcolor.ArgumentAverageMean|prominentcolor.ArgumentDebugImage,
		resizeSize, bgmasks)

I believe all single color images have the same problem

edlinorg / prominentcolor Goto Github PK

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prominentcolor's Issues

How ignore some color in image?

why can't support png/web? how can i do it

Panic with completely black image

ColorRGB implement golang color.Color interface

v1.0

Mask Problem

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