Legacy ImageMagick Discussions Archive

We have ceased to use IM for this -> problem solved.


I also have same problem as your issue. I would like to convert the original image to 8-bit palette bmp.
I am thinking to stop using IM and change to another library. My programming platform is Ubuntu, php.
So what is the library you are ...

glennrp wrote: 2017-01-10T11:55:59-07:00 As others said, you need to turn off antialiasing.

Could you please show me how can I turn off anti-aliasing?
And what is the effect of anti-aliasing here?
Thank you.

@snibgo,
my input image is just grey-scale image.
I have not tried SetImageStorageClass() before writing.

@snibgo
I am going to add some circles but I disabled all these codes. Because I want to see the effect of ImagickDraw.
Even I just created an object of ImagickDraw and did not add anything, bitdepth of image_output was changed to 24.
My full code here:

$img = new Imagick($image_input_8bit_bmp ...

@fmw42, my output image is still bmp.
My application was written in php.
Code is simply like belows:

$img = new Imagick($image_input_8bit_bmp)

$draw = new ImagickDraw();
$draw->setStrokeOpacity(1);

$img->drawImage(draw);
$img->writeImage(image_output);


Finally, image_output is 24-bit bmp.
Is ...

My ImageMagick version in Linux is 6.7.7-10
I used the function drawImage() to add some circles into the 8-bit bmp.
However, the problem is after adding some circles, bitdepth of image became 24-bit.
Hopefully, I would like to keep the same bitdepth as the original image.

Is this a bug of ...