571008
66
Zoom out
Zoom in
Previous page
1/153
Next page
65
Step 1—Viewing the Histogram
The first step in adjusting tone levels and color balance in the
Curves palette is to view the histogram displayed in the back-
ground of the curve edit display. The histogram provides infor-
mation on what tones are present in the image and in what
amounts, information that you will use when editing curves to
make the most of the tone range in the original image. By studying
the histogram, you can determine the distribution of tones within
the image.
Reference: The Tool Chest
The histogram takes the form of a bar graph. The horizontal
axis shows the tone level (pixel brightness) as a value from 0 to
255, with the minimum possible value for colors in the selected
channel at the left end of the axis and the maximum value to the
right (if the selected color model is RGB, calibrated RGB, or
grayscale, shadows are to the left and highlights to the right,
while when CMYK is selected highlights are to the left and shad-
ows to the right). The vertical axis gives the number of pixels of
each tone level found in the image, scaled to fit in the curve edit
display. The histogram bears no relation to the position of the
individual pixels within the image.
To view the distribution of tones in the final, output image after
changes to curves, click the histogram button ( ). Click again
to view the distribution of tones in the original image.
Although values for input and output in the Curves window
range from zero to 255 (eight-bit precision, familiar to users of
other image editing software), the results of any changes to curves
are calculated at a precision of sixteen bits. This makes it pos-
sible to modify images scanned at bit depths of twelve and four-
teen bits without lowering the quality of the output.
66


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Nikon Scan 3 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Nikon Scan 3 in the language / languages: English as an attachment in your email.

The manual is 2,81 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Nikon Scan 3

Nikon Scan 3 User Manual - German - 153 pages

Nikon Scan 3 User Manual - Dutch - 153 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info