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

[Jan Wolter]

I would try to add the tool "Convert To JPEG" to the batch process. 
There you are able to define the same compression setting as in the 
configure digikam dialog.

On 08/28/2014 01:53 PM, cerp 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
>>>>>
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>>>>> Digikam-users at kde.org
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>>>>
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