[Digikam-users] How to stop "watermark" reducing the size of the pictures?

[HaJo Schatz]

Is there really a loss of quality or only a reduction of size?

On Thursday, August 28, 2014, cerp <cerp at eeos.biz> wrote:

> No, digikam still reduces the pictures from 4.8Mb to 1.8 Mb, with the
> consequent loss of quality / details. It happens not only when I apply
> watermark but any other batch tool.
>
> Quoting Jan Wolter <jan.wolter at uni-paderborn.de>:
>
>  Yes, thats true. Does this settings have a positive impact to the quality
>> of your edited pictures?
>>
>> On 08/28/2014 12:11 PM, cerp wrote:
>>
>>>
>>> Dear Jan,
>>>
>>> I have set JPEG quality = 100 and chroma sub sampling = none, that
>>> should be maximum quality correct?
>>>
>>>
>>>
>>> Quoting Jan Wolter <jan.wolter at uni-paderborn.de>:
>>>
>>>  Hello,
>>>>
>>>> I guess that your images are generally (independent from the added
>>>> watermark) not saved with maximal quality. Check your settings under menu
>>>> Settings -> Configure digiKam -> Saving Images.
>>>>
>>>> Best regards,
>>>> Jan
>>>>
>>>> On 08/28/2014 09:43 AM, cerp wrote:
>>>>
>>>>> Dear all,
>>>>>
>>>>> We use the watermark function to add the copyright in the bottom right
>>>>> corner of the pictures.
>>>>>
>>>>> The pictures are taken using in camera jpeg generation, which normally
>>>>> has very high quality.
>>>>>
>>>>> When we watermark in digikam, it reduces the size of the jpeg file
>>>>> from approximately 4Mb to 1.8Mb with a considerable loss of quality. We
>>>>> have tried setting all the parameters we could think, but without being
>>>>> able to stop this behavior. What I would like is the original picture with
>>>>> the watermark saved at the same resolution without additional compression
>>>>> .... how do I achieve it?
>>>>>
>>>>> Thanks for your help.
>>>>>
>>>>> Regards
>>>>>
>>>>> Corrado & Rina
>>>>>
>>>>>
>>>>> r
>>>>>
>>>>> _______________________________________________
>>>>> Digikam-users mailing list
>>>>> Digikam-users at kde.org
>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>
>>>>
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>>>
>>>
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>
>
>
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