Grayscaling images causes mangled image + segfault

[comp.lang.php]

[php]
/**
* Class for grayscaling image
*
* @author Phil Powell
* @version 1.2.1
* @package IMAGE_CATALOG:: IMAGE
*/
class ImageGrayscaleG enerator extends ImageResizeComp onents {

/
*----------------------------------------------------------------------------------------------------------------------------------------------------------
This class exists due to the rather poor performance of the
imagecopymergeg ray() command
Borrowing code snippet from http://us3.php.net/manual/en/functio...ymergegray.php
first line comment
Will perform actual grayscaling of image one pixel at a time.
-----------------------------------------------------------------------------------------------------------------------------------------------------------
*/
// REMEMBER TO USE REFERENCE POINTER ONTO $image OBJECT TO ENSURE
"static" CHANGE TO OBJECT AND NOT TO INSTANCE

/**
* Constructor. Set all properties dynamically
*
* @access public
* @param resource $image (reference)
* @param resource $newImage (reference)
* @param int $image_width
* @param int $image_height
*/
function ImageGrayscaleG enerator(&$imag e, &$newImage, $image_width,
$image_height) { // CONSTRUCTOR
global $section;
foreach (array($section , 'newImage', "${section}_wid th", "$
{section}_heigh t") as $val) $this->$val =& ${$val};
}

/**
* Make the image grayscale
*
* @access protected
*/
function makeGray() { // VOID METHOD
global $section;
for ($i = 0; $i <= 255; $i++) $colorNDX[$i] =
@imagecolorallo cate($this->newImage, $i, $i, $i);

if (is_array($colo rNDX) && @sizeof($colorN DX) 0) {
for ($y = 0; $y < $this->{$section . '_height'}; $y++) {
for ($x = 0; $x < $this->{$section . '_width'}; $x++) {
$ndx = @imagecolorat($ this->image, $x, $y);
$ndxColorArray = @imagecolorsfor index($this->image, $ndx);
$avg = floor(($ndxColo rArray['red'] + $ndxColorArray['green'] +
$ndxColorArray['blue']) / 3);
@imagesetpixel( $this->newImage, $x, $y, $colorNDX[$avg]);
}
}
}
}
}

if ($this->isSuccessful && $image && $willGrayscale) { // GRAYSCALE
IMAGE
$igg =& new ImageGrayscaleG enerator($image , $newImage,
$image_width, $image_height);
$igg->makeGray();
$igg = null;
}
[/php]

Whenever I run this class to grayscale an image, I wind up with the
resulting image being horribly mangled to the point of its original
format completely irreparable, furthermore, I wind up with an Apache
segfault and having to reboot the server to correct the problem.

Um, why?

Phil

[Steve]

| | Probably works from home because no company will hire him. Can't say
as
| | I would blame them - I sure wouldn't!
| >
| hmmm, jerry...i WORK from home because no company will HIRE me? do you
see a
| problem there with your reasoning? you're funny; just in a kind of sad
way.
| >
| >
|
| I never said you did anything productive. If your posts here are any
| indication, you don't.

you said:

probably works from home b/c no company will hire me.

i said:

how is it that you say i *work* from home yet i am *not* employed?

you said:

i never said you did anything productive. (which is completely non-sequitur)

i think:

it's too late at night for you...at least that's the benefit of the doubt
i'll afford you.

[Jerry Stuckle]

Steve wrote:

| | Probably works from home because no company will hire him. Can't say
as
| | I would blame them - I sure wouldn't!
| >
| hmmm, jerry...i WORK from home because no company will HIRE me? do you
see a
| problem there with your reasoning? you're funny; just in a kind of sad
way.
| >
| >
|
| I never said you did anything productive. If your posts here are any
| indication, you don't.

you said:

probably works from home b/c no company will hire me.

i said:

how is it that you say i *work* from home yet i am *not* employed?

you said:

i never said you did anything productive. (which is completely non-sequitur)

i think:

it's too late at night for you...at least that's the benefit of the doubt
i'll afford you.

Even too stoopid to understand plain English. No wonder no one will
hire you.

Troll. And a stoopid one, also.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

[Steve]

"Jerry Stuckle" <js*******@attg lobal.netwrote in message
news:Pq******** *************** *******@comcast .com...
| Steve wrote:
| | | Probably works from home because no company will hire him. Can't
say
| as
| | | I would blame them - I sure wouldn't!
| | >
| | hmmm, jerry...i WORK from home because no company will HIRE me? do
you
| see a
| | problem there with your reasoning? you're funny; just in a kind of
sad
| way.
| | >
| | >
| |
| | I never said you did anything productive. If your posts here are any
| | indication, you don't.
| >
| you said:
| >
| probably works from home b/c no company will hire me.
| >
| i said:
| >
| how is it that you say i *work* from home yet i am *not* employed?
| >
| you said:
| >
| i never said you did anything productive. (which is completely
non-sequitur)
| >
| i think:
| >
| it's too late at night for you...at least that's the benefit of the
doubt
| i'll afford you.
| >
| >
|
| Even too stoopid to understand plain English. No wonder no one will
| hire you.

hey genious, the reference to *work* and *employment* is literal. your
firgurative relation to *productivity* is non-sequitur. hence, while you
show you understand english, you show a complete inability to apply it in
context. that's probably a deeper theme for you that spans many areas in
your life - from logic to programming to ...

further, you seem to think i'm not employed or unemployable because i call
shitty code 'shitty code' an am sometime abrupt in how i speak to some
people. christ, you really must have fallen asleep in your logic classes in
college - or did you even go?

i'm done with you, stucco.

*PLONK*

[comp.lang.php]

On Apr 19, 9:48 am, Jerry Stuckle <jstuck...@attg lobal.netwrote:

Steve wrote:

| | Probably works from home because no company will hire him. Can't say
as
| | I would blame them - I sure wouldn't!
| >
| hmmm, jerry...i WORK from home because no company will HIRE me? do you
see a
| problem there with your reasoning? you're funny; just in a kind of sad
way.
| >
| >
|
| I never said you did anything productive. If your posts here are any
| indication, you don't.

you said:

probably works from home b/c no company will hire me.

i said:

how is it that you say i *work* from home yet i am *not* employed?

you said:

i never said you did anything productive. (which is completely non-sequitur)

i think:

it's too late at night for you...at least that's the benefit of the doubt
i'll afford you.

Even too stoopid to understand plain English. No wonder no one will
hire you.

Troll. And a stoopid one, also.

But incredibly entertaining. In a "I'm trying so hard to be Simon
Cowell but I'm just too unwittingly self-flaggelating" kind of way.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstuck...@attgl obal.net
=============== ===

[comp.lang.php]

On Apr 18, 11:35 pm, Schraalhans Keukenmeester
<bitbuc...@inva lid.spamwrote:

Steve wrote:

"Michael Daly" <MichaelD...@fo o.barwrote in message
news:DN******** *************** *******@magma.c a...
| Steve wrote:
|
| i work from home
|
| since you can't deal with people face to face. That's why you hide
| behind your computer and insult everyone.

no. it just cuts down my daily commute. in fact, i am in such a stature that
i've flown around the world to meet and discuss/plan development projects
with the boards of directors, cios, and ceos of many global corporations of
which most of them you've probably heard...such as toyota, porche, bmw,
audi, carfax, bnsf, american airlines, morgan stanley...and some that you
probably haven't.

all i can say is that we both leave said meetings with smiles. must be good
raport during the course of many a golf game and fine meals. :)

say what you will. your intention to insult me (making you hypocritical)
only does so were i to perceive it true. i obviously have no experience that
would render your remark as anything other than flatly false.

| Instead of taking up your mother issues with everyone else, how about
| you do the mature thing and get a therapist.

the thing about the oportunists who join a feeding frenzy is that they come
bearing teeth. i think yours have been left in the small cup of water on
your bathroom sink.

| Civil behavior is a pretty basic skill you've yet to learn.

<chucklingyou obviously haven't read this entire thread. say, the third
post down where comp.lang.php (the op's handle) is actually the code's
author (phil). phil and his rubbish-for-code is what i was going on about.
might i have used different words rather than 'brain-dead' (reference to the
author) had i know phil == comp.lang.php? probably. too late for that given
his nym-shifting. would i call shitty code by another name? i dare not, dear
rose.

| Cheers!

lol.

May I recommend someone to you who probably _is_ at your currently
rather lonely level, where we, earthbound minions, can only look up to
and tell our children wonderful fairytale stories of?

Look up Alan Connor, if you haven't already bumped into him at the six
mile high Ole Boys Network. He _surely_ will understand fully what you
mean and how we all fail to see the immense talent and wisdom you exhume.

In case you need further directions, Alan's in the encyclopaedia of
utter bliss following the terms 'Troll', 'A-hole' and 'Pseudologica
Fantastica'. Why they are in that particular order no-one down here knows.

@ Phil: Although there may be some valid points to be made (and done so
by others) about the actual code you posted, and while I share the
curiousness about the performance of your custom solution compared to
the off-the-shelf alternative, please ignore the trash talk. It's
something that appearantly comes with usenet territory. It's been in
fashion with some for years now, and it will probably outlive us all,
but after a while it's easier living with this minor nuisance than with
a boil on your behind or mosquitoes in the bedroom at night.
And, of course, there's always that shred of hope we will all once see
the light and are allowed to join the ranks of those miscomprehended
superheroes ;-)

GL
Sh.

Thanx SH.. I'm just waiting for that future HR company to google/
keyword this thread when dear ol' Steve looks for a job.

[Steve]

| But incredibly entertaining. In a "I'm trying so hard to be Simon
| Cowell but I'm just too unwittingly self-flaggelating" kind of way.

who is simon cowell? you watch too much tv. explains a lot to me.

[Steve]

| Thanx SH.. I'm just waiting for that future HR company to google/
| keyword this thread when dear ol' Steve looks for a job.

you really are a clueless fuckwit!

exactly WHAT would they be searching/keywording for? and exactly HOW would
they know 'Steve' was the applicant in front of them? wait, lemme guess...on
your resume in bold at the top, it reads: COMP.LANG.PHP (like a dumbass).

get a fucking clue. even if they did (which is IMPOSSIBLE), they'd certainly
agree that your code is shit. they may want me to tone down what name i use
for said rose, but we'd wink everytime we used the substitute.

as it is, my fte has enjoyed having me as an employee for about seven years
now. my pte has as well in a consultant position...unde r which contract, i
am on retainer. that should suggest to you that i have a *very* good
relationship there since they pay me each month regardless of whether i work
for them during that time or not - they know that whenever i do and for
whatever it is they have me do, i get it done. i've been pte this way for
two years now. and, except for my first consulting gig, all my pte contracts
have been by reference.

all that should tell you something; that you are wrong. even more, that you
should revisit the initial advice i gave you before the name calling
started, since it may be that i actually do know what i'm talking about.

either way:

*PLONK*

[Jerry Stuckle]

Steve wrote:

"Jerry Stuckle" <js*******@attg lobal.netwrote in message
news:Pq******** *************** *******@comcast .com...
| Steve wrote:
| | | Probably works from home because no company will hire him. Can't
say
| as
| | | I would blame them - I sure wouldn't!
| | >
| | hmmm, jerry...i WORK from home because no company will HIRE me? do
you
| see a
| | problem there with your reasoning? you're funny; just in a kind of
sad
| way.
| | >
| | >
| |
| | I never said you did anything productive. If your posts here are any
| | indication, you don't.
| >
| you said:
| >
| probably works from home b/c no company will hire me.
| >
| i said:
| >
| how is it that you say i *work* from home yet i am *not* employed?
| >
| you said:
| >
| i never said you did anything productive. (which is completely
non-sequitur)
| >
| i think:
| >
| it's too late at night for you...at least that's the benefit of the
doubt
| i'll afford you.
| >
| >
|
| Even too stoopid to understand plain English. No wonder no one will
| hire you.

hey genious, the reference to *work* and *employment* is literal. your
firgurative relation to *productivity* is non-sequitur. hence, while you
show you understand english, you show a complete inability to apply it in
context. that's probably a deeper theme for you that spans many areas in
your life - from logic to programming to ...

further, you seem to think i'm not employed or unemployable because i call
shitty code 'shitty code' an am sometime abrupt in how i speak to some
people. christ, you really must have fallen asleep in your logic classes in
college - or did you even go?

i'm done with you, stucco.

*PLONK*

Total moron.

And I haven't been called that since third grade. But that's about your
level of intelligence.

<PLONK>

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

[Jerry Stuckle]

comp.lang.php wrote:

On Apr 18, 11:35 pm, Schraalhans Keukenmeester
<bitbuc...@inva lid.spamwrote:

>Steve wrote:

>>"Michael Daly" <MichaelD...@fo o.barwrote in message
news:DN****** *************** *********@magma .ca...
| Steve wrote:
|
| i work from home
|
| since you can't deal with people face to face. That's why you hide
| behind your computer and insult everyone.
no. it just cuts down my daily commute. in fact, i am in such a stature that
i've flown around the world to meet and discuss/plan development projects
with the boards of directors, cios, and ceos of many global corporations of
which most of them you've probably heard...such as toyota, porche, bmw,
audi, carfax, bnsf, american airlines, morgan stanley...and some that you
probably haven't.
all i can say is that we both leave said meetings with smiles. must be good
raport during the course of many a golf game and fine meals. :)
say what you will. your intention to insult me (making you hypocritical)
only does so were i to perceive it true. i obviously have no experience that
would render your remark as anything other than flatly false.
| Instead of taking up your mother issues with everyone else, how about
| you do the mature thing and get a therapist.
the thing about the oportunists who join a feeding frenzy is that they come
bearing teeth. i think yours have been left in the small cup of water on
your bathroom sink.
| Civil behavior is a pretty basic skill you've yet to learn.
<chucklingy ou obviously haven't read this entire thread. say, the third
post down where comp.lang.php (the op's handle) is actually the code's
author (phil). phil and his rubbish-for-code is what i was going on about.
might i have used different words rather than 'brain-dead' (reference to the
author) had i know phil == comp.lang.php? probably. too late for that given
his nym-shifting. would i call shitty code by another name? i dare not, dear
rose.
| Cheers!
lol.

May I recommend someone to you who probably _is_ at your currently
rather lonely level, where we, earthbound minions, can only look up to
and tell our children wonderful fairytale stories of?

Look up Alan Connor, if you haven't already bumped into him at the six
mile high Ole Boys Network. He _surely_ will understand fully what you
mean and how we all fail to see the immense talent and wisdom you exhume.

In case you need further directions, Alan's in the encyclopaedia of
utter bliss following the terms 'Troll', 'A-hole' and 'Pseudologica
Fantastica'. Why they are in that particular order no-one down here knows.

@ Phil: Although there may be some valid points to be made (and done so
by others) about the actual code you posted, and while I share the
curiousness about the performance of your custom solution compared to
the off-the-shelf alternative, please ignore the trash talk. It's
something that appearantly comes with usenet territory. It's been in
fashion with some for years now, and it will probably outlive us all,
but after a while it's easier living with this minor nuisance than with
a boil on your behind or mosquitoes in the bedroom at night.
And, of course, there's always that shred of hope we will all once see
the light and are allowed to join the ranks of those miscomprehended
superheroes ;-)

GL
Sh.

Thanx SH.. I'm just waiting for that future HR company to google/
keyword this thread when dear ol' Steve looks for a job.

Yea, that will be lovely, won't it? ROFLMAO!

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

[comp.lang.php]

On Apr 19, 12:03 pm, "Steve" <no....@example .comwrote:

| Thanx SH.. I'm just waiting for that future HR company to google/
| keyword this thread when dear ol' Steve looks for a job.

you really are a clueless fuckwit!

exactly WHAT would they be searching/keywording for? and exactly HOW would
they know 'Steve' was the applicant in front of them? wait, lemme guess...on
your resume in bold at the top, it reads: COMP.LANG.PHP (like a dumbass).

get a fucking clue. even if they did (which is IMPOSSIBLE), they'd certainly
agree that your code is shit. they may want me to tone down what name i use
for said rose, but we'd wink everytime we used the substitute.

as it is, my fte has enjoyed having me as an employee for about seven years
now. my pte has as well in a consultant position...unde r which contract, i
am on retainer. that should suggest to you that i have a *very* good
relationship there since they pay me each month regardless of whether i work
for them during that time or not - they know that whenever i do and for
whatever it is they have me do, i get it done. i've been pte this way for
two years now. and, except for my first consulting gig, all my pte contracts
have been by reference.

all that should tell you something; that you are wrong. even more, that you
should revisit the initial advice i gave you before the name calling
started, since it may be that i actually do know what i'm talking about.

either way:

*PLONK*

Enjoy your cowardly anonymity while it lasts. You can be found out, I
promise you that.

Plonk.. wow.. but thank you for being my favorite laugh riot for the
week!