b+w vs. grayscale

On 20-Sep-2004, "dwolf" wrote:

I have a graphic with text which is just black that I need to send out to have a dye made for a stamping press. The company tells me a tiff is fine and it should be b+w… not a grayscale ??? I’m not sure how to do that…
Thank J

if it’s not already grayscale, convert it to grayscale (Image-> Mode-> Grayscale)
then convert it to bitmap (Image-> Mode-> Bitmap)

—
Tom Thackrey
www.creative-light.com
tom (at) creative (dash) light (dot) com
do NOT send email to (it’s reserved for spammers)

On Tue, 21 Sep 2004 06:24:43 GMT, "Tom Thackrey" wrote:

On 20-Sep-2004, "dwolf" wrote:

I have a graphic with text which is just black that I need to send out to have a dye made for a stamping press. The company tells me a tiff is fine and it should be b+w… not a grayscale ??? I’m not sure how to do that…
Thank J

if it’s not already grayscale, convert it to grayscale (Image-> Mode-> Grayscale)
then convert it to bitmap (Image-> Mode-> Bitmap)

—
Tom Thackrey
www.creative-light.com
tom (at) creative (dash) light (dot) com
do NOT send email to (it’s reserved for spammers)

Unless I’m mistaken you’ll need to use the posterize filter or some other method to get to two colors only. Just changing to bitmap won’t do it.

rg

Unless I’m mistaken you’ll need to use the posterize filter or some other method to get to two colors only. Just changing to bitmap won’t do it.

Photoshop will ask for a "color" reduction method for converting to bilevel, so no difficult things for converting to bitmap.

Waldo

Seems if you take the grayscale image and just convert it to bitmap it gets fuzzy
"Waldo" wrote in message

Unless I’m mistaken you’ll need to use the posterize filter or some other method to get to two colors only. Just changing to bitmap won’t do it.

Photoshop will ask for a "color" reduction method for converting to bilevel,
so no difficult things for converting to bitmap.

Waldo

On 21-Sep-2004, wrote:

On 20-Sep-2004, "dwolf" wrote:

I have a graphic with text which is just black that I need to send out to
have a dye made for a stamping press. The company tells me a tiff is fine
and it should be b+w… not a grayscale ??? I’m not sure how to do that…

if it’s not already grayscale, convert it to grayscale (Image-> Mode-> Grayscale)
then convert it to bitmap (Image-> Mode-> Bitmap)

Unless I’m mistaken you’ll need to use the posterize filter or some other method to get to two colors only. Just changing to bitmap won’t do it.

1) When you convert a grayscale to bitmap PS prompts you for a conversion method.
2) The OP said his original was ‘black only’, so it should convert to bitmap perfectly.

—
Tom Thackrey
www.creative-light.com
tom (at) creative (dash) light (dot) com
do NOT send email to (it’s reserved for spammers)

On Tue, 21 Sep 2004 11:22:07 GMT, wrote:

On Tue, 21 Sep 2004 06:24:43 GMT, "Tom Thackrey" wrote:

On 20-Sep-2004, "dwolf" wrote:

I have a graphic with text which is just black that I need to send out to have a dye made for a stamping press. The company tells me a tiff is fine and it should be b+w… not a grayscale ??? I’m not sure how to do that…
Thank J

if it’s not already grayscale, convert it to grayscale (Image-> Mode-> Grayscale)
then convert it to bitmap (Image-> Mode-> Bitmap)

—
Tom Thackrey
www.creative-light.com
tom (at) creative (dash) light (dot) com
do NOT send email to (it’s reserved for spammers)

Unless I’m mistaken you’ll need to use the posterize filter or some other method to get to two colors only. Just changing to bitmap won’t do it.

well, it could, depending on how you output the final bitmap. a 2 channel (4 bit, i’m guessing, cant quite remember) bitmap only has two pixel values: black or white (essentially on or off, i believe).

there are various conversion methods to arrive at bitmap, and these effect final quality. diffusion, dither, etc

Seems if you take the grayscale image and just convert it to bitmap it

gets

fuzzy

Is the grayscale image pure black/white or does it contain gray values?

Which method did you select when changing the image mode to bitmap?

Did you view the final result at 100%?

Can you post a link to the image, so others can have a look at it and help you further?

Waldo

It should be pure black and white ?? but not sure. Here’s a link to the graphic. I needed to reduce the resolution to put it up. http://www.jlfurniture.com/logo/logo.html
I just went up to mode and chose bitmap option. Same output resolution, Method 50% Threshold

"Waldo" wrote in message

Seems if you take the grayscale image and just convert it to bitmap it

gets

fuzzy

Is the grayscale image pure black/white or does it contain gray values?
Which method did you select when changing the image mode to bitmap?
Did you view the final result at 100%?

Can you post a link to the image, so others can have a look at it and help you further?

Waldo

Image>Adjustments>Threshold

Toby

"dwolf" wrote in message

I have a graphic with text which is just black that I need to send out to have a dye made for a stamping press. The company tells me a tiff is fine and it should be b+w… not a grayscale ??? I’m not sure how to do that… Thank J