remove all color but red, then replace it with black

[BashBedlam]

I edit it and the code is working as I intended

Excellent!

sorry out of topic, how did you attach pictures? can you upload directly from your PC?

When you are posting, click or tap onPreview Postthen scroll down until you seeAttachments. UseBrowseto find the image, open it, and then useAdd Attachment.

[kucingkembar]

thank you again BashBedlam
[attachment=1498]

[kucingkembar]

I edit it and the code is working as I intended

Excellent!

sorry out of topic, how did you attach pictures? can you upload directly from your PC?

When you are posting, click or tap onPreview Postthen scroll down until you seeAttachments. UseBrowseto find the image, open it, and then useAdd Attachment.

hey, I see you give me a reputation point, thank you,
any tutorial so i can give you a reputation point too?

[BashBedlam]

If you click on the name in blue next to the avatar/logo it will take you to my profile. Scroll down to reputation and click rate. Thank you.

[deanhystad]

The problem working with color is there is no such thing as red or blue or green. Is red a color with rgb == 255, 0, 0? For most images there won't be any pixels with that rgb value. How low can the red portion be before you start calling this black. Is 100, 0, 0 "red enough". How much additional brightness can there be and still call a color red? Is 255, 100, 100 too pink?

When looking for particular colors does it make more sense to use HSV color encoding? In the HSV color model red has a Hue of 0, green 120 and blue 240 with 360 being red again. Saturation is how saturated the color appears, 1 (or 100%) being all color and 0 being no color. Value is how bright or dark the color appears with 1 (or 100%) being very bright and 0 being black. The HSV equivalent of 255, 0, 0 is 0, 1, 1 (Hue = 0 degrees, Saturation = 1 or 100%, Value = 1 or 100%).

But even though HSV makes it easier to specify redness using hue (0 +/-10 degrees say), you still need to make rather arbitrary selections for saturation and value.