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Is there a simple way to determine the number of black pixels in
a specimen text block?

I want to compare the differences in the number of pixels used to
display the specimen text block in different type faces.

In message <>,
Lindsay.Rollo@paradisedotnetdotnz wrote:

> Is there a simple way to determine the number of black pixels in
> a specimen text block?

render(the_text, pixbuf);
nrblack = 0;
for (row = rowmin; row < rowmax; ++row)
{
for (col = colmin ; col < colmax; ++co)
{
if (getpixel(pixbuf, row, col) == black)
{
++nrblack;
} /*if*/
} /*for*/
} /*for*/

I was hoping someone woul;d know a readily available program that
would give me the answer, as I'm not a programmer.

"Lawrence D'Oliveiro" <_zealand> wrote in message
news:hfack1$5oq$...
> In message <>,
> Lindsay.Rollo@paradisedotnetdotnz wrote:
>
>> Is there a simple way to determine the number of black pixels in
>> a specimen text block?
>
> render(the_text, pixbuf);
> nrblack = 0;
> for (row = rowmin; row < rowmax; ++row)
> {
> for (col = colmin ; col < colmax; ++co)
> {
> if (getpixel(pixbuf, row, col) == black)
> {
> ++nrblack;
> } /*if*/
> } /*for*/
> } /*for*/
>

NERD for knowing that

In message <hfapif$dq5$>, Craig Sutton wrote:

> "Lawrence D'Oliveiro" <_zealand> wrote in message
> news:hfack1$5oq$...
>
>> In message <>,
>> Lindsay.Rollo@paradisedotnetdotnz wrote:
>>
>>> Is there a simple way to determine the number of black pixels in
>>> a specimen text block?
>>
>> render(the_text, pixbuf);
>> nrblack = 0;
>> for (row = rowmin; row < rowmax; ++row)
>> {
>> for (col = colmin ; col < colmax; ++co)
>> {
>> if (getpixel(pixbuf, row, col) == black)
>> {
>> ++nrblack;
>> } /*if*/
>> } /*for*/
>> } /*for*/
>>
>
> NERD for knowing that

That’s right, I forgot this is actually nz.knitting. My abject apologies for
posting something related to how you actually use computers.

In message <>,
Lindsay.Rollo@paradisedotnetdotnz wrote:

> I was hoping someone woul;d know a readily available program that
> would give me the answer, as I'm not a programmer.

Hire a programmer, then.

Lawrence D'Oliveiro wrote:
> In message <>,
> Lindsay.Rollo@paradisedotnetdotnz wrote:
>
>> I was hoping someone woul;d know a readily available program that
>> would give me the answer, as I'm not a programmer.
>
> Hire a programmer, then.
>
If the OP wants a windows executable to do the job, post again here and
I'll make one for free and upload it.
It will take little time to do, yet be more productive than Larry D'O's
entire career on usenet.

Me <>::

>If the OP wants a windows executable to do the job, post again here and
>I'll make one for free and upload it.

Thank you for your offer, which I accept.

You could attach the executable to an email to



I'm primarily interested in counting black pixels, but can you
will make provision for counting any color?

Cheers

Lindsay.Rollo@paradisedotnetdotnz wrote:
> Me <>::
>
>> If the OP wants a windows executable to do the job, post again here and
>> I'll make one for free and upload it.
>
> Thank you for your offer, which I accept.
>
> You could attach the executable to an email to
>
>
>
> I'm primarily interested in counting black pixels, but can you
> will make provision for counting any color?
>
Just emailed it to you, exe file in a zip, about 215kb.
Very basic rough & ready, but works okay. To use, open a bitmap file by
clicking "Open bmp file..." button.
(not sure how you wanted to do it, but loading image as bitmap was
simplest, so you might need to save your image as a bitmap first)
Default colour of pixels to count is black, result displayed when file
loaded.
Click anywhere on displayed bitmap image to select a different colour to
"count pixels", and show result.

Me wrote:
> Lindsay.Rollo@paradisedotnetdotnz wrote:
>> Me <>::
>>
>>> If the OP wants a windows executable to do the job, post again here
>>> and I'll make one for free and upload it.
>>
>> Thank you for your offer, which I accept.
>>
>> You could attach the executable to an email to
>>
>>
>>
>> I'm primarily interested in counting black pixels, but can you
>> will make provision for counting any color?
>>
> Just emailed it to you, exe file in a zip, about 215kb.
> Very basic rough & ready, but works okay. To use, open a bitmap file by
> clicking "Open bmp file..." button.
> (not sure how you wanted to do it, but loading image as bitmap was
> simplest, so you might need to save your image as a bitmap first)
> Default colour of pixels to count is black, result displayed when file
> loaded.
> Click anywhere on displayed bitmap image to select a different colour to
> "count pixels", and show result.


Your email bounced the attached zip file. Have uploaded to server and
sent you a link to download it.
Cheers.